Colin is definitely one of the best host I ever had in Airbnb, he call me before my trip and send me a pdf with all the activites I could do.
The flat is huge, clean and everthing is very near (table montain, restaurants, bars,...) signal hill (+-10min), waterfront (+-5min), seapoint (+-5min)...
If you go to CapeTown I'm sure that you will love be in this place.
Try to rent a scooter, thats perfect for the trafic and to feel the nice weather from CapeTown.