Not having a club for this machine yet so here we go.
I personally love this machine. Played it at a friends house when I was young and I was immediately sold.
It has great colours and artwork (Dick White)
A nice layout (Ted Zale)
2 ball multiball feature (with bonus collect on multiball start)
Shooter lane towards grabber assembly with the second button
Popbumpers rollover buttons light them for higher value (10 to 100 pts)
Outlane return gate to shooter lane
4580 units made.
Some prototypes have a different ballygator mech with a plastic covered grabber.
Regular ones have an assy with just an arm grabbing the ball. Sometimes missing from the machines because it was taken out by the operator.
Also famous for the 60s based series Happy Days where the machine was placed in Arnolds Diner and often being played by the Fonz and his friends. Actually NIP-IT is a 1973 machine so it was a little error for Happy Days to have that machine in the diner.
5 years ago I sold my machine (space issues) that was the best of 3,5 I bought in the period before.
Now having a bigger gameroom I'm back to the same situation today having again 3 nip-its'. A nice view those 3 lined up next to each other. My friends say I'm crazy ...