We've stayed in Jambo a handful of times, and loved it. I did request a studio close to lobby. But anything else would be helpful about staying here?
You do not mention whether you have standard or savanna view. If standard view, and want a chance to actually have a savanna view, you can request close to the Pumbaa elevator, the last elevator on the north wing (front entrance faces west). Standard view rooms in that area have a direct Pembe savanna view. Note, however, that those rooms near that elevator are very far from the lobby.
If you have savanna view, and want to see giraffes and zebras (which are not on the Pembe savanna), you should make your lead request for room overlooking Sunset savanna. That request is highly likely to be provided because more than 80% of all savanna view rooms overlook Sunset.
The Kidani building is close to 2/3rd of a mile long, and a room far from lobby can mean having an extremely long walk to lobby, pool, and bus station, a fact that has lead many to request close to lobby. Also, close to lobby is one of the requests one can make when checking in online. Those two factors combined mean the request most made is close to the lobby and many have reported not getting it. And when they cannot meet a location request, they just put you in another area that may be available, which is often a room far from the lobby.
Two possible requests you might consider are: (a) close to the Rafiki elevator, which is on the north wing not real far from the lobby, and down that elevator to the ground/parking garage floor provides the shortest walk from the building to a gate to the pool; (b) close to the Timon elevator, on the south wing also not real far from the lobby, and that elevator to the second floor leads to a door that exits directly to the bus station. We usually make one of those request in addition to Sunset savanna view as our lead request, and sometimes provide both those elevator location requests saying we would be happy with either one. We have usually gotten one of those close to elevator requests. The last time we made a close to lobby request (several years ago) we got a room very far from a lobby.