I enjoyed my stay at Antonio's. I specifically was looking for a quieter neighborhood without the tourist scenes. The view from the bedroom was impressive and it was walking distance to some fancy clothing stores and local restaurants. To me, it is accessable if you like to walk hills to Príncipe Real.
The host was really responsive during my stay. I gave it 4 out of 5 because the bathroom towels were very thin and old like hand towels. I also was given only 1 roll of toilet paper (if even a full roll) and when I asked for more, I was informed I needed to supply myself. which is understandable if after a few rolls, but to me questionable after 1. The host was still accommodating and provided an additional roll after I questioned.