No demo, so I need advice from Quake fans who've played inMomentum! Have any of you guys tried it?

For those with no idea what I'm talking about, inMomentum is a new 'indie' freerunning/racing game. Looks like a cross between Mirror's Edge and Warsow race mode. Commercial, but quite cheap.

I'm shit at movement in all Quakes, and Defrag is pretty much too hard for me, so I don't mind if this game is a bit noobified. But I don't want to waste money on it if I'm going to hit my skill ceiling in a week, or if it has shit mouse controls or FOV forced to 75 or something.