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Eh, not the greatest but works for Mac.
One of the few N64 emulators that work on OS X but it's not as good as Windows emulators. Unlike some of the top Windows based emulators, you have to pay $ just to get a logo removed from the corner; full screen works poorly. I'll stick running a Windows based emulator through Bootcamp.
Pros: Let's me play my N64 ROMS without having to switch over to my Windows on Bootcamp.
Cons: poor frame rates screw up the backbuffers