super happy. got 2 X1C with now 1800h on them.
have them now running 24/7 for a big order i got for 6 days. 4 same filament in the AMS as I am printing 1 item 800 times.
the printer will only pause so i can clear the bed before the next print.
got twice filament stuck in the extruder on 1 of them only and since i got them only had a 0.4 nozzle issue (clogged and was unable to open it).
last week on one of them there was noise which i figured is from the Z belt. i kept it running and after 3 days it was gone. maybe need to replace the z belt soon just in case.
There is 1 thing i figured is that they do not like to print slow! yes they do not.
every time i slow down the first layer to 15 or 20 for printing details like text or geometry I got bad adhesion.