Sanaa is on the level of Apple Bees in terms of service/food. It's good, but nothing amazing. Jiko is like dining at your local finest steak house. Last time I visited Jiko, I think we were there about 2-2.5 hours after all was said and done. There were not any kids cry, nor servers trying to hurry us out. It was a relaxed, romantically lite, enjoying dining experience.
Jiko wins hands down.
All the signature's don't ever rush u. that's what makes them signature besides other reasons.
Sanaa is no applebee's! The food there i feel is consistent and real good. one of the best places for one credit in WDW i think.
There can be crying kids in any restaurant. we take our little girl (13 months first time and 19 months last time) to all sign restaurants and she had her good and bad moments. jiko was one of those bad moments and i don't think anyone minded. kids are kids. especially young kids. we take her out every weekend with us to nicer places so she is used to it to some degree.
jimi