It gets tons of press and seems pretty meme-y to hate. But mine of 3 years has no problems and I actually enjoy typing on it quite throughly. More than an other laptop keyboard actually. I’m sure there are at least dozens out there just like me…
My own butterfly keyboard was replaced twice, with the final version being an "improved" version according to Apple. It has worked OK for 3+ years, with no further problems other than the unpleasantly low key travel and paint wearing off.
For me the trackpad's bad palm rejection was a much bigger issue.