As a gamepad player, I find PSO2 a much more enjoyable experience with a controller. Though a problem is that there are not enough keys.

Since I need to get a new one because my current one is breaking down, I'm thinking of getting one with more keys, possibly on the shoulderbuttons. With a bit of research I can only find Razer Sabertooth, but all the comments so far seem to show that the quality is very, very poor. Any suggestions for a controller (preferably dualshock schemed)?