About 15$ per meal, but the portion is enough to fill any starving man from 0 to 100%.
It's generally a good idea to order 20-30min in advance, because that's the time it takes to get food out of the kitchen.
I had the half chicken, with fried plantain and rice. The half chicken was rather tender and juicy, a little burnt however. The marinate was peppery and very tasty, but they use the same marinate for every dish (my friend had seabass and it tasted same).
The fried plantain were bland, but it's a good substitute for fries. To add flavor, I ate it with their hot sauce.
As for the rice, it was orange/pink-ish and somewhat aromatic, I don't know enough about african cuisine to tell what they added.
After the meal, I asked around and people said you can get similar food at cheaper prices around St-Michel.