Lived here for just over a year. It takes some getting used to but it grows on you and now I consider it home
Nairobi is infamous for its crime and poverty but as with any big city, this kind of one-sided categorization is simplistic. Yes, it's home to one of the world's biggest slums (Kibera) and yes, the car-jacking and robbery rates are a significant worry. Yet there are signs everywhere of economic development and the streets are thronging with hustlers who aren't just there to harass the (almost non-existent) tourists but to make a living and move on up. Visitors who expect only "TIA" cliches may be surprised by the diversity of neighborhoods and the number of hipster coffee shops, juice bars and slick clothing stores that are strewn across the city.
If you are planning a visit and want to know what is on while you are in Nairobi, check out this website to stay up-to-date with events. http://nairobinow.wordpress.com/
Nairobi is easily one of my favorite African cities. I was initially terrified of the place. It does have a reputation. After living there for a few months, then visiting again often things totally changed. There is a lot of great stuff here. It's a fairly easy place to move around (minus the traffic) and there are several excellent day trips you can take from here.