Most people I know around PA have little to no knowledge on glass. The only two companies that get any respect are Illadelph, RooR and Medicali. That's cool and all, but most people sound like idiots when I throw out names like SG, SGW, Toro, etc. Truthfully, I didn't know much about glass until I joined the city. I just find it funny that people will say your glass isn't as good because it isn't one of the three mentioned above. (As as side note I just picked up a name brand 20" fixed stem shower perc and I love it).