My X1C has 1070 hours on it now, I would guesstimate I have spent about 4-6 hours in total 'tinkering' with it. Not having to manually level the bed every so often probably has saved the most time, but failure rate is very low as well. The AMS has been the largest issue, much of that due to non-Bambu spools, or low on filament spools. I hear the A1 AMS is pretty much foolproof, the P1/X1 AMS definitely has some quirks. I wouldn't trust it enough to do a large multicolor print while I am sleeping.
I would highly consider the Qudi if it had been available before I purchased the X1C
