Temperament wise, they are probably what you would define as "middle of the road". Their aggression is conspecific, but my older (wild) ones don't seem to be anywhere near as aggressive as my younger (tank raised) ones. The bigger ones just spend the day swimming around the tank and looking nice, and breaking up fights between the young ones. The young males are like the school yard bullies, but I've never seen any of them do any real damage.
I can tell you this. If you have highly aggressive species in with them, you won't see their true behaviour and personality. I've kept mine in several different scenarios, and this is the best situation for them. (Seems like alot of the Cynotilapia variants are easily intimidated by some of the more psychotic mbuna, IME.)
My adult males are right at 5 inches, and the females are about 4- 4 1/2. The fry are a vibrant gorgeous blue from the time they are born, and as you can see in the pic above, it doesn't take long before those little cichlid personalities show up!
Here are a few pics from my F1 group. I got them from AquaBid from a seller in Wisconsin....you guys probably know him. His name is Mark (Aquarius). He got the WC parents from Steve (J_N_S). I'm thinking my guys might be siblings too...