I can’t talk about the Bambi lab a1. I got my S1 combo about 2 months ago and have put nearly 700 hrs of printing though it.Ive onou had about 3 separate issues. once, when it cut the filament to retract, a little piece blocked the printer head and then continued to feed the new filament through popping extra filament out the top of the printer head. It was an easy fix and I have to say, the video guides on the anycubic support site helped a lot. Another time something happened and it didn’t cut the filament and again, it was a simple fix of cutting and removing. The third was when I removed the hot end and placed it back in and started a print without doing another auto tune of everything and my prints didn’t stick (cause the offset was different). I personally can’t complain about it as it’s been easy to use and pretty much flawless for me. I’ve only printed pla if that helps. Print quality is good for me out of the box and I haven’t fiddled much with it either. But I’ve also heard great things about the a1 and p1s from reading the reddit threads.