Stayed at the AC Cape Town twice on my past trip, and it was an excellent stay. Location is not the greatest in terms of walkable access to the V&A waterfront, but complimentary shuttle bus or cheap Uber fixes that. Breakfast was quite good, excellent spread. Room was comfortable, I didn't get an upgrade but oh well. Not the best views for "waterfront".
Staff was excellent, very prompt and warm service. Would stay there again if I returned as it was good value.