I have one. They are totally legit and awesome. When I actually got mine it was missing the Neo-Geo board and I have put in a MVS to Jamma adapter from Jammaboards.com
Right now I have "Super Puzzle Fighter" running in it, but the cabinet is awesome and I would never part with it. Even if I sold all of my other cabinets I would keep this, just for the fact that you can always find a place for one.