Got mine in there today. Install went way longer than I thought because of a couple snags. First, and I'm not sure if it is just that I am lowered or what, but there was absolutely no way to get the alternator out of my car without pulling the passenger side driveshaft. We ended up just rotating the alternator downward and resting it on the driveshaft so we could get at the pulley from underneath. I secured the stock pulley with a oil filter wrench, and took the bolt off with an impact. New pulley went right on and that was pretty much it for the alternator pulley install. Don't even try this without an impact.
WP was a piece of cake. 4 bolts and pulley is off, slapped the new one on and it was done.
The PS pulley was a PITA. I highly recommend that anyone doing this pulley takes it to a shop and has the old one pressed off and the new one pressed on. We had to hit autozone to borrow a 5-ton puller, and it absolutely destroyed my stock pulley. Then, the new one was pretty tough to get on. I stuck it in the oven for a total of 20 mins at 200-250 degrees, and it wasn't enough. I had to bash the living crap out of it with a block of wood and mallet, ended up pressing it on about a 16th inch too far, and broke my PS pressure sensor off in the process. Take that sensor off first if you do this pulley yourself, I wish I had.
Overall wasn't too bad though, and the pulleys are top-notch. Definitely a noticeable butt-dyno difference on my car at 6-7psi, and the accelerometer is showing a 6hp increase. Won't blow your socks off but the gain is there for sure.
I will post a how-to thread soon, need to get all my pictures and thoughts organized.