These optimal settings will most likely only include settings for the most popular AAA titles. For those games, there is already very good in-game settings that even a newbie can adjust to their liking. The only games I would need this for are for games that not only do not have good in games settings, but also refuse the default settings from the control panel.
Some games require very specific settings in order to get things like AA or AO to work properly. These can be done with programs like Nvidia Inspector, but can be difficult to set when you don't know the right flag to trigger it. not only that, you also run the risk of messing up your drivers if do something stupid. Those are the games I would love a nice tweaking program for, but unfortunately these games will probably never be supported by this new application they are developing.
Oh, and cloud sucks donkey balls. I just felt like saying that.