people like to bash x-arcade stuff. I personally have no problems with it. I had a 2player x-arcade unit for a few years, it worked great..i eventually gutted it and built my own contol panel and used the parts from the x-arcade. That new one looks pretty cool, with more space between the players, and a trackball, it seems like a good deal. Hell, if they had that one when i bought mine, i probably wouldnt have built my own panel, i just would have made a mount for that unit to attach to my cabinet.
If you are used to using happ buttons and sticks, then maybe you wont like the x-arcade..people say they dont feel as good, but if you are like me, you will be perfectly happy with it. It is great too becasue of the console connectivity. It can easy go between pc, playstation, gamecube, dreamcast and xbox. not many products can do all of those.
if you do end up getting one, please post a review