The accuracy is going to do with more of how good of a player you are. I recently swapped out my Defender mame cabinet from a PC to the 19-n-1. I think they both play identical to me. The upside to the 19-n-1 is it's solid state, so you can power it off and on without any risk to mame and it's the fastest booting machine in my line up. The downside to the 19-n-1 is it doesn't save your high scores. If the high scores a deal breaker to you, then go with mame. If you're a pro player, there may be some nuance to the game that you would pick up.