This is a gorgeous place in a great location. We had a long stay and felt like we were living in the area.
If you are unable to climb stairs, you will need to plan around the load shedding schedule that can change at a whim. There were a couple of times that the power went out (no fault or anything the host can do) but you will need to climb to the 4th floor. This is true of almost all Airbnb's in Cape Town.