Looks just like the back side of all the other control panels you can find here. Horizontal switches on all of the controls. 4/8 way configurable joysticks.
I took all my x-arcade controls out of the CP that they ship it with and mounted them in my own board. And before everyone tells me how bad x-arcade is, the interface board's ability to connect to PS2, XBox, N64, etc...well worth it for a multi system cabinet. A simple serial switch box and you never have to swap the cables around.
I may upgrade the switches at some point as they are a little "mushy", but the joysticks seem to be good enough for now.