We spent 6 weeks at Koos's apartment. Everything was as expected.
We had to do a late check-in since we got there at 11pm. The apartment is exactly as it looks in the pictures. It was very clean! It comes fully furnished and includes all kitchenware, including a dishwasher, a washing machine and a dryer.
Also, a friendly woman came weekly to clean the apartment. So we didn't have to worry about bringing extra bed linen.
Regarding the location, the apartment is located in Green Point, with really nice views (specially for sunset when you lie on the bed after a long day). Signal hill is right behind. And the Promenade is walking distance from the apartment. From the rooftop you can also enjoy these views! It is very cool, however, given that it was winter we didn't spend too much time there. There are also a few restaurants near the apartment, as well as a grocery shop (which is very convenient). A parking spot is available, so when we rented a car we where able to parked it inside. There is always a security guy at the reception (24h), they were also very nice to us!
Finally, Koos (and his team) were very attentive to any query. Since our flight back home was at 10pm, he let us do a late check-out!