If you like the Blaxploitation flicks of the 70s, this is your candy. If you liked Shaft, but thought it was a bit slow, this one has a little more action, and budget, and its logic matches Shaft in Africa (leads come out of nowhere and thugs appear at the unlikeliest of times).
Cleopatra Jones is a good programmer with the offbeat twist of having a sexy woman detective as the lead character. The script incorporates a slew of action set pieces, capably directed by Jack Starrett.
The movie is put together in a sort of disjointed way; there are too many characters, and some of them disappear for so long, we forget them. But that doesn't matter much; the idea is to string together scenes that entertain, and Cleopatra Jones does that nicely.