I had to go to Prometric to take my Project Management Professional (PMP) test in March. This is the only place in the area for computer based testing for the PMP, so it's not like I can recommend going somewhere else. Computer based testing centers are pretty bland, and they are all mostly the same. This one wasn't too much different than the one I went to in Puyallup in Washington a few years ago for my CAPM certification. The only difference was that this one actually had a dedicated employee watching in at us and at the monitors that taped us taking tests. Very intimidating!
The reason why I'm giving this place an above average score was that I was such a bundle of nerves during this test (I've been prepping for this test for a long long time and was a big deal to me) that I was in the bathroom a lot and they were nice to me about it.