Quiet Crazy Mocha, prefect for getting some work done. Stopped by in the afternoon, and it wasn't crowded at all - only maybe 4 other people than me for the hour I was here. Barista was friendly and quick.
Pros: nice areas to get work done, desk-like areas, and plugs available. Not too loud.
Cons: some of the upholstery is in bad disrepair. The wifi worked, but not on several sites (reddit, UPMC, my bank's web site, mostly https sites), which limits my desire to come sit here and work while spending $.