I've had it for a while but I just finished this game up (PSP was the only thing I brought home with me) and I definately recommend it to anyone regardless of whether they are into the series or not. I'm sure some of you guys have played this but it really shed some light on the holes in the Resistance story especially concerning the cloven. It was pretty fun fighting them off and learning about them. Also traveling through the Netherlands, Germany, Luxembourg, and finally going through Paris.
Getting used to the aiming was tough at first but then it felt so natural. Pretty difficult game though but the aiming really worked well. Pretty lengthy game. Anyone with a PSP I gotta recommend it. Gonna play it on infected mode with my copy of R2 next since there are minor story changes and extra intel.