We had a very pleasant stay at Rees and Haja´s appartment. Its centrally located, close to everything in the city, and very clean and attractive. Situated on 17th floor you also have a nice view over the city. The hosts are very friendly and also very helpfull, giving us advice on numerous questions during our 1-week stay there.
A general hint regarding Cape Town: we found taxis cumbersome and not very reliable and had much more succes using Uber - thats also the company recommended by many locals.