Since we ate at Marakesh during our first disney trip, we have returned there often. Sometimes because we sought that experience again, and sometimes because it was available as a walk up. I do not like hot, spicy food. But I do enjoy different flavors. That being said, usually myself as well as my kids end up getting the beef shish-ka-bobs with rice. During one trip where we dined at Le Cellier as well, the beef tenderloin (filet mignon) at Marrakesh was actually tastier than what we had at LC.
The dining atmosphere is very unique. Belly dancer comes out at hourly intervals and is accompanied by a small band.
Cannot remember if they had a kids menu or not. My kids are steak lovers. If it wasn't on the kids menu, then I'm sure we probably had them split an entree.
I think it's definitely worth going once to determine if it's a cuisine that will appeal to you.