Very nice and very affordable guesthouse about a 10 minute walk (2 minute drive) from the United Nations. If you're travelling to Nairobi to do work at the UN, this is literally the closest hotel you will find and the price is very reasonable - 100 USD a night. Staff were very friendly and rooms were clean. Downside - food at hotel was average and my room did not have a mosquito net and I was absolutely devoured.