I actually feel ok playing pushers because I actually have a decent overhead and volley compared to my crappy forehand! I find it MUCH easier to beat these type of players than ones that can actually hit decent balls. I get much more time to get to the net with the slow pushers
Last time I played on I crushed about 4 overheads before he changed his tactic and tried to play "real tennis". Didn't work either since he was just sending them out at that point. Sure he would get some passing shots at me that were nice but I just let that slide and kept the pressure up.