For me also work like Charm, no trouble, no errors, nothing only printing. Print a Vase with 20cm high and every of that 1000 Layers was need a Nozzlechange, print was done without trouble.
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I also expect the printers sent to youtubers were fully QA’d.
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Mine has been very reliable. I thought the first 5 or 6 prints were of a lower quality to my P1, but after the first 10-15 hours, I can’t say that I believe that anymore. The prints are better than the old printer, and the added capability is great. I especially love how easy ABS prints now. No-brainer.
The only “problem” I’m waiting for a fix is the bed heat-up. It needs to be slowed down. I don’t need 55C in 20’ish seconds, especially at the cost of dropping the voltage on my circuit. I like things happening fast as much as the next guy, but there is no need for that kind of speed especially when the lights flicker while its happening.
It would also be nice if Bambu Studio didn’t go rogue and flip filaments around. But they did mention you have to stay on top of the filament syncing. I imagine that is what you are seeing when you mention the AMS filament changes.
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Also I suspect most youtubers would not report an initial problem that was quickly corrected. Some of the youtubers got two machines worth ~$7K with almost no preconsditions. Few people are going to bite the hand that feeds them.
My H2D works great, as does my P1S.
I actually trust Bambu, which follows normal business practices, more than most youtube reviewers.
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I think the hard bit here is to prove that it is a lemon. Annoyingly those issues OP talks about sound more like user error (I know they aren’t, just saying) - almost easier to insist on returning the whole machine. Which of course means either waiting weeks, or order another one and wait for refund.
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Holy smokes that looks nice …
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Is that because the print quality improved, or because you stopped the understandable over-focusing on your first prints on the new machine?
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knock on wood, mine has been amazing so far. Even printing huge prints that take days and fill the usable print area. Not one of the issues you have described.
I feel its cleared up some initial VFA. I was seeing it often on the first few prints, now I need magnification to find it. Also, the first few prints seemed less precisely stacked (layer inconsistencies) when I compared near-identical parts printed on each, but now, I don’t see the same differences.
I’d now go so far as saying it is better all around to my P1 of the past. No longer any aspect where I think the P1 was higher quality.
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Quick update from my side:
Support replied and acknowledged the issues, but so far they’re still asking for more video evidence – despite me already providing plenty of photos and detailed descriptions.
They’ve mentioned the possibility of a repair, replacement (normal or advanced), or refund – but only if I provide even more documentation.
I’ve let them know that I’m no longer able or willing to do further troubleshooting or repairs, and that I’d prefer to proceed with an advanced replacement, even if it means paying the deposit upfront.
Due to a past injury, doing hardware repairs myself isn’t really feasible for me.
Let’s see how they respond now.
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Share all info how it finish this nightmare i want to upgrade from P1S to H2D but i want to be sure the printer doesn’t have problems 
Nozzle change after 1000 layers!
I’m not signing up for that.
I’ll stick with my X1 Carbon. 9 months printing and no nozzle change.
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No no, you have to change the nozzle EVERY layer! It gets expensive very quickly
Same here works pretty well.
Tbh i expected a 80 %working product but get one that is 99.9 mature.
Only complain is that i am not allowed to xha ge colors mid print or aet 2 colora on one ams slot.
So…persorm all updates, write the support.thats defenitiley not the quality bambu usually delivers
Ah, can I buy shares in your nozzle making company? 
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I was lucky with my Kickstarter purchase - Mine showed up in October and over the last few years I have only had to swap out a first stage loader on the AMS.
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funny, when they updated the software for the h2d.
i also had some ams problems, i emailed bambu still awaiting.
like other color print, wrong slot or no slot.
and im only using the p1 with ams
Make sure there’s nothing jamming any of the moving parts. Belts, roads, z screws etc…
Then try updating the firmware on both the printer and the ams to the latest versions.
Then run through a full calibration cycle, and self test cycle. Fixing anything that came up on the self test if any did.
Try to print calibration cube, first layer test (full plate) make sure all these print as expected.
Then if there are any issues, document it with pictures and full description and open a ticket with bambu. Someone will answer within a day at most.
As for the YouTube reviews, I’m sure suppliers only send fully tested machine to their online reviewers, and I’m sure at least most of the reviewers know they can only bush their suppliers once. So they don’t reveal all the mishaps. 
I never buy version 1.0 of anything anymore lol I’ll let you guys work all the bugs with bambu and only buy one when the H2D Carbon (or whatever they’ll call the next gen of H2D)
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I think you had a failed device from scratch and it could be because of delivery damages. I had only shared the problem with GLE with you. other stuff working near prefect for me so far. color changing was the best part for me. I did a lot of it. What I saw and I already do it just in case was tightening all the screws. it maybe loosed over transport (and it was! even when my printer was working fine)
I had the same very negative experience with so called “support”.
Not only I was waiting DAYS between communication, but they kept asking for things that weren’t at all connected to the issue… All my tickets I had to resolve myself.
That is why those X1C’s that I have purchased will stay with me and then will be building more Voron 2.4 as currently with multi head that is deadly cheap + much better speed/quality and reliability only thing that is keeping those X1C alive in my place is the fact that it takes time to build 2.4 and it is better to build at least 3 at once than just 1 or 2…
Definitely NOT WORTH THE MONEY, software is horrendous, AMS custom filaments as of now are completely broken (disappearing filaments, not able to add new colours, one brand working on one AMS but on the rest it doesn’t, disappearing info that filament is present (yeap it shows as there is no filament in AMS, in all units, randomly, sometimes 1, sometimes 3, sometimes all shows).
HORRIBLE experience and support does not exist.
Of course I do understand that Bambu is not software company as 99% of the software is basically a GitHub clone and they do not have even a single good developer, but come one… Either HIRE PROPER DEVELOPERS or just use open source as is and do not throw hardware with half-baked software…
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