I've played both the C64 version, Amiga version and arcade version. And while Steril707 is certainly correct in stating that the graphics of the Amiga version don't look as good as the arcade (the ghosts especially), I still think it's a good conversion.
Why? Because it plays very well. It's just a very nice game to play and it 'feels' like Pac-Mania even though it doesn't look as nice as it could. It's also interesting to see an Amiga game in full overscan when the arcade game wasn't
Overall, I'm very happy to have the game and still go back to it from time to time.