I bought the Japanese version. Like most review said, the mini cabinet, control and the small screen are great. When hook up on a TV, it doesn't look has good than the NES and SNES mini. You could compare to the quality from old SNK collection released on PS2 and Wii. They look and play fine, but the pixel are not sharp and bright. It also only display in 720P...
I did not bought a extra controller. I'm a huge fan and owner of the Neo Geo CD, and love the controller. But the new one do not have the clicking sound, anyone that played any old SNK system know what Im talking about. The sound and precision of the joystick/pad are quite unique. Also, SNK made the stupid choose to change the button placement, making some games (Metal Slug) stupidly annoying to shoot, jump, and use the grenade. At least they could had a option to customize the button in the option menu...
If your not a big SNK fan, pass it, or wait to see it at discount.