I saw some video a while ago with one of these things in it. The screen marquee is like that to change from game to game.
I was actually torn about this machine. I would of course never buy one, but if someone gave it to me, I'd probably keep it...but it would be tucked away in my bedroom for no one to see. Its a monstrosity, but could be a guilty pleasure.
When they were scrolling through games on it, it did look like a blast to play. The screen is huge and super bright and it has like every game known to man. Not just arcade games either. Its kind of cool.
Only problem, is the control panel looks the best it can I guess, for needing that many buttons, but still looks like shit. I usually dont like Mame cabs at all. I think a PC in an arcade cab is the same concept as shoving a playstation 3 in an arcade cab. Dont like the idea.