Yeah, I just upgraded to an R9 280X, and with the new driver I downloaded this app was installed as part of the package. I don't think I really mind it running, but I'm not sure I think of it as anything special at this point. I'm used to changing settings myself. But I do think it's neat how it kind of keeps track of how much time you spend gaming as well as how you rank compared to other people, etc. I seem to recall it recognized quite a large chunk of my library, but like you mentioned, not every game seems to be supported yet.
AMD FX-8350 Black Edition | ASUS M5A99FX PRO R2.0 | Corsair HX850W | 16 GB Crucial Ballistix DDR3 1866 | Samsung 840 EVO 250 GB SSD | Western Digital Caviar Black 2.0 TB SATA-3 | Samsung DVD +/- RW (SATA) | Gigabyte R9 280X | Cooler Master HAF XM | Dell UltraSharp U2713HM 27" LCD | Logitech MK520 keyboard/mouse combo | Logitech X-540 5.1 speakers | Windows 8.1 Pro x64