I tried plexiglass on my first day, and I didn't like it as much when working on it. I can't see what I'm doing much more than on polished metal, it's still hard to my hands, and the result changes after a few prints. Not much of a fan (maybe because our presses are set for zinc and copper and it's a PITA to have to change them and fight for the one we have taken over during the whole session, too ^^)