Stayed downtown on 2 different layovers there in early November at the Sofitel. I never left the hotel, but was sleeping during the days. Walking around in the day in the actual city is OK, Air France crew info, but I wouldn't go out when the sun starts going down. Check out the State Dept. website for specifics, although they say the same for just about all of Africa.
We did have an armed check point stop are van going across the bridge to the city, but they saw three pilots and waived us on. I guess that is a good thing?!?
Cheers,
PtP