I ate there for dinner one night--it was easy to get a table, (probably because it was late for the dinner period) but the service was rather slow. I would probably not recommend this if you're hurrying to get out to see Illuminations or something, but as a leisurely meal it was decent. Also go early for dinner to maximize your time with the entertainment, because I think she stopped around 8:30pm when I was there.
If you're a couscous fan, you can ask to sub the couscous for the rice--I thought the lamb and the couscous were the best and would just order that next time.
Also, if you have a birthday, it would probably be entertaining to tell them, as they make quite a show of the singing. I saw several celebrations while I was eating.