KISS is no better or worse a player than the other Bally games from 77-79. As mentioned above, it's valuable because of the theme more than gameplay.
You'll need to be the judge whether it's a keeper or not. Depends how you look at it i guess.
Obviously it will make excellent trade bait if you're not a Kiss fan.
Also, it will likely struggle to keep you interested amongst a line up of DMD's. But i reckon it'll be hammered constantly at the next meet :)
