Is it in Carrollwood?
If so, I know the owner and he's a good guy.
Otherwise, I know a guy with one that has a new NI-Wumpf and still won't work 100%.
It was really frustrating him (I thought it might be a slam tilt, as GTB are normally closed), but just problematic, as system 1's can be.
Also, the guy with the Big Guns on CL has a Genie that's similar - really nice and new pcbs, but still won't work right. See a trend?
I think the only Sys 1 that I'd take is a Joker Poker... and just for the art and drop targets.
Good luck if you go there!