It would have got 5 stars if I knew how many of the machines were not operational. And we're not just talking about ones from the 1960s. There are plenty from the 80s, 90s and 2000s that are out of order. Of the four machines I knew they had, that reminded me of my arcade days, only two were working, and we're talking late 80s. But, that said, even if you removed every non-operational machine, you'd still have a hell of a historic arcade. I liked the little pieces of history on each machines, even the ones not working, but they are handwritten. Surely you can hire someone to transcribe them and print them out.
Highlights for me were playing a pinball machine from 1953, seeing an original Galaga machine, not the Ms. Pac Man hybrid, and playing Punch Out! before it was branded with Mike Tyson. And I can still beat Glass Joe!