We have always had our requests met, although we do go offseason & check in early so I am sure that plays a huge part.
Our requests have included: King bed & second floor at the moderates and Zebra Trail at AKL overlooking Arusha Rock.
I must say that when we checked into AKL last year, they did not immediately grant our request. She showed us (on the map) that our room was on the Kudu trail and we politely asked if there was anything available on the Zebra. She checked and said that wouldn't be a problem but we would have to wait a little bit. They are very, very accomodating!!!