So I just got my Frag Fx Rev 2 yesterday and it performs a lot better than I actually expected (then again, I was NOT expecting a true mouse/keyboard emulator). In general looking up/down works somewhat less as well as looking to the sides..but it still works a WHOLE lot better than the PS3 controls for an old PC FPS gamer. Here are the list of games (most of em the demos) I have tried it with so far along with my reactions:

Killzone 2
Sluggish, not the best of the bunch that’s for sure. 4/10 (doubtful if the fx will actually improve things much here). boring game though so i dont care

WarHawk
Pretty decent, much better than KZ2
7/10

Mirror’s Edge
Really great actually, I ran through the demo quickly.
8/10

Battlefield Bad Company
Awesome much.
9/10

QuakeWars Enemy Territory
Felt very nice.
8/10

In general it feels like where the games have been made for multi-platform in mind – the control works much better, like if the game were designed around a mouse and keyboard this control will work better. My guess is that’s because on those games they start out with mouse/keyboard and then add support for the PS3 control as where with a native PS3 only title they might never involve the M/K in the same way. Me guesses this will mean that most games will work pretty darn great with the Frag FX. For me it was certainly a halleluljah moment since I have completley given up FPS on the PS3 (can’t stand it).