This is a centrally located hotel with pleasant ambience, good restaurants, and pleasant poolside area considering it is in the middle of Nairobi. I have stayed here before and the hotel has improved since last time

The good points: the common areas are attractive, especially the dining and pool areas. The food was quite good, particularly the room service, although the prices (especially the buffet) are more in line with North American or European rates. The business centre had plenty of computers with fairly reasonable high speed service (although again, costly - approx $10 /half hour).
The bad points: My room was incredibly small and had paper-thin walls (I spent the evening listening to the TV programme in the room next door). The decor and bedding was well worn. I booked the room through a travel agent and could have gotten a better deal online, but for the price I paid I should have been in an executive suite (although I'd still bet the price wouldn't be worth it).

I stayed at hilton nairobi two times, as it was the only opportunity i had in nairobi (others were fully booked). First of all the hotel doesn't deserve neither 5stars nor the hilton brand because it is in a desperate need of refurbishment and it is impossible to not recognize that nothing was done in this direction for many many years. the staff is totally and absolutely unelpful, they have no experience and are totally uninterested in solve the problems of the guests. the first time i arrived quite late, about 11 p.m. and i booked a deluxe plus room. i had to wait more than two hours to get my room and we did three attempts (entering in rooms were already were sleeping peoples) to find a room for me. moreover they gave me the smaller de luxe room (after trying to give me a disgusting room by the pool). the second time i had the room i booked in few minutes, but after some hours i received a comunication by the reception who told me that my credit card was blocked. they didn't want to call again the bank (as they don't have the on line POS for amex) or try again and didn't let me use internet to check my on line account. so i had to go outside, make an international phone call to amex and find an internet point to check my account. EVERYTHING WAS ok!!! so i came back to the hotel, i told this, they tried again and the card worked...
moreover both the times the bed was dirty and i had to ask many times to obtain new linens. i repeat: everything i asked (not strange things) i didn't receive any help by the staff, who also tried to charge me two dinners and a breakfast i didn't had. the health club and the gym are good.

We have been quite please during our recent stay in Nairobi...Would like to recommend to other business travelers as well..