Great apartment in a posh neighborhood. It's well connected - near Friedenau and Innsbrucker Platz S-Bahn (city rail) and U-Bahn (metro) stations and to the Ceciliengärten bus stop.
The flat has all that you can need and the host is very friendly and helpful. It's spacious, tastefully decorated with fully equipped kitchen. You could even prepare a quick meal with the products that are readily available in the cupboard. There is plentiful of tea and coffee too. The double bed is pretty comfortable, the sofa is usable too. The bathroom is stocked with everything you could need - shower gel, shampoo, conditioner, pads, etc.
There are two downsides that I should mention - first, the apartment is on the 5th floor and there's no elevator, and second, because it's near the S-Bahn railway you can hear the trains as they pass. However the noise is not that big and it's easy to overcome with a pair of earplugs.
Overall, it's a great place to stay and I highly recommend it!