Purchased September 2020.  As of today - I have an all-in-one that I can't use.  Windows doesn't seem to want to open, screen gets stuck on one of microsoft's wonderfully unusual pictures.  Contacted Lenovo, they were more interested in selling me an upgraded warranty that I could use on the NEXT ISSUE I have with the computer, but not this one.  Agreed to send it to them since it's still under warranty, they were supposed to send me a shipping label and details.  I got multiple emails re the upgraded warranty, but never got that email with the return label.  So guess I'll have to go outside of the warranty, take it somewhere local, and hope for the best.  Not sure I'd buy another one after this experience, and after having issues after less than a year of use.  If anyone from Lenovo is reading this - you seriously need to a) up your game, and b) contact me!