My sister and I didn't really like HDDR. You only have two hours to eat, and they bring out the food slow. If you want seconds, pretty much forget about it. I ordered a second order of ribs and it took them like 45 minutes to bring them out after reminding several waitresses (never saw ours again) and they were undercooked and made both of us sick. The show is just so-so. Our "actor" was very rude to us. They do a thing for birthday guests: they ask whose birthday it is, and then they do something in front of the whole crowd while pointing everyone out. We told our "actor" that we were there for my birthday and he laughed at us and walked away.
Then... there was much confusion on how to get back to our resort. We were staying at POP and the first CM told us to wait for the ferry to MK (mind you it was raining cats and dogs and was about 30 degrees out). So we waited for like 15 minutes or something before a guest came and told us the ferry stopped running to the MK because it was closed. So we went back to Pioneer Hall and another CM told us to wait for a bus to DTD. We did this for so long (I can't really remember exactly it was years ago, but more than 30 minutes) and no DTD bus. Finally an Epcot bus stopped and we asked him to give us a ride to Epcot so we could catch our buses to our hotels (there were several other families waiting with us). He told us no and that a DTD bus would be there in a minute (which is what several other bus drivers told us over and over again). Finally we argued our way onto the bus.
Eventually we got back to POP...
That's just us... my uncle swears by the show.