Marius was very welcoming, accommodating and responsive. He made it very easy to check in and get settled, and also was very quick to respond and help out when I had a small issue. The place is close to everything you could want to visit, and just two or three blocks from the MyCiti bus stop and the double decker tourist busy which, between the two, will get you pretty much everywhere you need to go. There's a great restaurant and coffee shop just across the street.
The only downside for me was that I'm particularly sensitive to noise, and the ceiling is a bit thin, and the noise outside was a bit excessive at times, but you didn't come to Cape Town to sit inside!
I'd highly recommend staying with Marius if you're looking for a nice place that's in the middle of everything.