I have been a Prusa die hard for years and ordered a Core One, then cancelled it the day the H2D was released (and its now sitting next to me).
I have had zero issues with it and its slowly doing more work than my Mk4s’s - i cant put my finger on exactly why, but the Bambu experience seems to fit my style more than anything else, don’t get me wrong the Mk4s is a fine printer and the MMU is great as well.
The only issue I have had worth noting is the dimensional accuracy which was eliminated (for PETG) with a small tweak in the slicer.