Prodrive P1 Wheels Performance?

I have given up on the BBS wheels search (see last thread). And am now looking at the Prodrive P1 18"wheels instead. Does anyone run these babies, and how do they hold up in the rough stuff (i.e. potholes, speedbumps). Are 18's too loud for everyday driving, cause thats what I will be doing.

I am searching for the perfect wheel tire setup on a WRX. Any suggestions besides the P1's (remember offset range between 50-55mm)?

Here's a wheel page for Impreza
http://wac.addr.com/auto/obs/wheels.html

P1's are strong but relatively heavy.. I have R2 Starforms and they're 17" +45mm, it's the minimum that would work, actually I would prefer +48mm and up. Noise depends a lot on your tires too, I have Azenis and they're looooud ...