My main steam account alone says I have 334 games, and only one is supported, Dota 2. I would say that pretty much says how badly supported this software is. And this is not including all the other games I own, none of which is also supported.
Beyond that I see no use in this when you have Facebook, Twitter, etc for all your social networking needs. And majority of the games I have owned have all have an "Optimize Settings" for your hardware you can click to try to get the best results, though it's a bit rough and requires some fine tuning I still think it would work better than what they are implementing.