I promised to provide my thoughts after eating there, so here they are..
We really enjoyed it. We had never eaten there before, so the rotating restaurant was a new experience for us. We were seated in the tables on the upper level, so we didn't really get a good view of the scenery below.
The food was good. I always love the POG juice, but it wasn't particularly cold. The cinnamon roll skillet was very good (not quite Gaston's, but still very good). The only thing that wasn't at or above expectations was the biscuits and gravy. The biscuits were good, but the gravy was just ok. It wasn't bad, but it wasn't great, and if you are new to the whole biscuits and gravy thing, it isn't a good representation of how it can be.
The character interaction was good, Chip, Dale, Pluto and Farmer Mickey made the rounds. Space is limited, so it is difficult to get good pictures, and there isn't much room behind a stopped Dale for a server to get by with a tray of hot food.
Overall, I would recommend it. We ate ourselves silly and enjoyed the experience. It was the first ADR of our trip, and set the pace for the others. I just wouldn't recommend going right to Mission: Space right after eating.