I asked if I could take a couple of photos but they said they'd prefer not. I've taken the ones below from their website which since I'm promoting the place they shouldn't object to.

Basically there are two parts to this location. In one door you have the restaurant. There's sand under foot, a small bar area at the entrance, low-low tables and you are inside what is meant to be a tent. Oh and it's really rather dark.
The other part is the bar. You can also get food there as far as I know. Much of it is non-smoking but there's a smoking area near the bar which consists of carved seating around an enormous communal ashtray. Other notable features include a clay hut which seats about 10, a little balcony seating about 6 and various other little sub-sections. There's lots of carved wood about the place and basically a very cool atmosphere.
Downstairs you have more seating in a couple of rooms and oddly enough, a jaccuzzi.
See their website for full details and lots of photos.
Im Herzen Afrikas
Gutleutstrasse 13
60329 Frankfurt am Main
Phone: +49 69 24246080