I also found gittler's a let-down. I stopped by when I was driving through Johnstown,... other than having some nice red form males of Pelvicachromis pulcher and some red phantom tetras,.. they were not great. They also were keeping aggressive fish in with calm species resulting in massive kills. I noticed diseases in the tank.
It was a crapshoot. Some tanks looked healthy others not so much. Not worth the drive if you're not from the area or in the area for other reasons, but worth stopping by if you're local...
oh, and the plants and discus looked to be in quite rough shape.