I recently held a class at the Crowne Plaza. I was concerned about security in Nairobi given the recent bombings but this hotel is clearly focused on it. All cars are checked before entry and all passengers have to exit the vehicle, at least at the times I entered. You need to scan you bags before entering as well. With that said, one of my peers had his laptop bag stolen from the lounge area. I'm embarrassed to say that 4 of us were sitting at the lounge table and none of us saw the perpetrator. The hotel staff was very helpful in reviewing film but the perpetrator was never found. However, I have to say I never felt unsafe at the hotel.
The rooms are very nice and very well appointed. The internet was acceptable and the temperature controls worked well. I didn't use the exercise facility but it looked complete. The restaurant was pretty good with a buffet at most meals with many good selections.
The staff here spoke english very well and were always extremely helpful in resolving any issues.
All in all it was a good trip to Nairobi and I would recommend the Crowne as a good hotel choice.