I have a pair of A50's and enjoy them. They have limitations due to the connections required, but if you're looking for a solid wireless gaming rig, these sound and perform well.
That said, I would probably look at a more traditional headphone next time. In fact, I am looking for a pair now to replace the A50's. I need something that is easier to connect to other devices, like a pair of Sennheisers or something along those lines.