I recently switched to Mint from Windows 8.1 and it's been shockingly easy. I run triple monitors at work and I was worried getting them all working was going to be a terrible experience. A coworker who runs Ubuntu offered to help me get it set up, but in the time it took for him to get a cup of coffee and come back, I had installed the driver Mint recommended and everything just worked. It runs great on my laptop too, so far I haven't had any driver issues.

Not all of my steam games run under linux but quite a few of them do and the ones I've tried so far have run just as well as they do under windows.