Khweza is really ok & good value for money. Rooms were clean, klamboo was provided, bathroom was clean, shower with hot water ... Staff was very friendly. There's free wifi and a pc to check your mails.
Sometimes it was a little noisy as the staff started cleaning the corridors early in the morning but so what...
Breakfast is really great. Eggs (omelet, scrambled, sunny side up), bread, jam, coffee, tea, fresh fruit (salad or pieces) and a fresh juice. You can have the breakfast on the rooftop with a great view over a part of Nairobi. The rooftop is a nice place to hang around.
Khweza is about walking distance from the main city center but I would not recommend to walk after dark as almost anywhere in Nairobi. Overall it's a nice place with nice staff & good value for money.