I only used it for a few hours last night but here's what I got so far: I disabled a bunch of the data collection things during the installation (I think I left usage stats or something like that...I like to give something back). The color schemes aren't that great. The start menu/search has been easy enough to adjust to. the UAC stuff messed up a few of my programs that didn't have permission to write to their own directories in Program Files. I don't use media center so I don't care about that. I heard that people had graphics problems with NVidia cards so I tried some games out. I think the drivers for this version of Windows actually enabled some new AA options for games. TF2 looked smoother. Dota 2 was where I had problems. I have DSR enabled on that and it couldn't properly translate my mouse movements. The cursor showed up in the right place but the game thought I could only access the top left quarter of the screen with my mouse. I couldn't get to the exit button. I turned DSR off and it was fine until I closed the game. It hung for a while but eventually closed. The install also didn't copy over my Realtek equalizer settings but that was a quick fix. I did an update after clicking around a bit and then restarted. The startup time seemed slow. I'm expecting a lot of updates but so far I think it's pretty OK for free. It looks different and that might scare people but you get used to it quickly enough. I'm not too jammed about anything except that little graphics problem.