Condition is amazing for the most part - one of the case hinges is broken, but that's replaceable. Keio had a $9 price sticker on it from a used video game store...someone lost out.
I've spent way too much right now at this point, but I had some extra money at the time and I feel it was worthwhile. I love Sega CD games, and this brings me a few steps closer - now for Snatcher and Space Adventure