I have spent 5 days at Antony's with my partner.
Anthony is a great guy, very friendly and truly interested in meeting people and making them feel at home. He even took us for breakfast before we left!
The best thing about our stay was the location. Most touristic spots are at walking or at a few subway stops distance.
A few things to be aware of. The room is small and very warm. If you travel light, don't plan to spend a lot of time in your room, and don't mind sleeping in a warm room (you can open the window, but then the problem becomes the noise from the street) you will be fine. Also, you may share the apartment with other guests. This has not been a problem for us, as the common spaces (including bathroom) were kept tidy, and the other two couples were nice and discreet.
The value for money is proportionate to the location.
Overall, we recommend it!