I don't personally have a complaint, I've never taken my computer to Best Buy to have it repaired, nor have I had the Geek Squad over to my house to work on my computer.
I know quite a few people though who have had nothing but bad experiences with computer upgrade or repair at Best Buy. So I thought it would be nice to have a thread for people to vent who had the same experiences. I hear so often how you take your computer to a place like this and they find way more problems than originally existed, a simple power supply replacement turns into needing a new hard drive, motherboard, etc.
And of course no offense to any Geek Squad employees.