It is becoming an arrival night tradition with us. We've been several times for breakfast and for dinner. Different characters at each. It's a decent buffet (better than a lot of character buffets I could name - I'm looking at you, Chef Mickey's!), and the stepmother and stepsisters are the best. So funny! They used to also take a photopass picture in front of the mural but I think they changed the in/out flow of the restaurant? Also, lots of fun photo ops while you're waiting for your table, and the GF lobby and grounds are fun to walk around in. I wouldn't wait till the last minute to get an ADR, but I don't think they're as hard to get as some other character reservations. Again, looking at you, Chef Mickey and Ohana.
We've only had early reservations (5, 5:30) because we have young kids, and we've never had to wait very long.