There was a 2-Player at MGC this past weekend. I thought it was fun, but I made the comment about the cost vs. the $10 steam game to my friends around me.
Turns out I was in range the company rep, he came up to me and said "Thanks for the input!" and handed me his card. So yeah, felt a bit bad, but again, wasn't judging the game itself, just the cabinet economics. Looks like it would do well in an arcade.