Moving to Nairobi????!!!!

Hi guys: I really need your advice, please. I may have a job opportunity (int.development) in Nairobi and move there very soon. Well, needless to say the city has a notorious reputation and I have already heard about how bet to take precautions...
I would love to get your advice and feedback and I am especially looking for the GOOD in Nairobi so I can start looking foward to it.
Also I have a little son Protected content ) and would also love him to enjoy playing outside in the sun...that's partly why I am leaving cold, rainy London!!
Thanks a lot!