We made the mistake our first night in WDW ever to go to our ADR @ Chef Mickey's 1 hour early. We didn't know how much time to alot for travel from our resort, to downtown disney via boat, and then to the Contempary via bus.
We just got there quicker than we expected. Anyway, we waited for about 45 minutes before they sat us, and 15 minutes earlier than our original ADR! So, it was our fault, but it wasn't too bad.
The only other problem we had was O'Hana's, and again it was our fault! We left the Magic Kingdom, and chose to go to the Poly via ferry. Not the big one, but the little 15 person one. Anyway, we felt it would be fun and quick. Not so much. It made another stop first, and took almost 25 mintues! Then we had to find our way through the Poly to O'Hanas. We were 15 minutes late for our ADR and then it took O'Hana's another hour to seat us. The kids were starving and acting very much like the 3 and 4 year olds they were (lot's of whining and restlessness).
Regardless, the wait was worth it as we got a table by the window and saw a magical view of Wishes. It just so happpened to be better than if we were to have been seated at our regular time.
Every other ADR was no more than a 10 minute wait...and a few just walk right in.
Oh, I did forget Tusker House! That was a fiasco. We were there for breakfast and had ADR's for 10:15. We checked in at 9:50 and around 11:00 we noticed the lunch crowd was arriving. After finally asking what the deal was we discovered that our beeper was never activated and that we were not properly checked in. We had been considered a No Show. The lady who checked us in was there on her first day after training or something and was very embarrassed.
Anyway they made it right by not billing the meal to our dining plan, and kept the characters around my children constantly. We only had 30 minutes before the breakfast buffett was up, but they said anything we wanted after it was up would be prepared for us. That wasn't necessary as we were fine with 30 minutes! We also received a complimentary photo package. Again, we are a pretty easy going family, so it wasn't that big of deal. The funniest part was the grouchy faces in the home pictures we took of each other. You could tell which ones were taken when we first arrived and which ones were after waiting an hour and seeing people check in after us and then get seated!