Paolo was very kind, thoughtful, and responsive, and the check-in was easy, but there are a few things to mention that aren't clear from the listing. The beds are shown side-by-side, and they were not. The bottom "bed" was a pull-out drawer, which was broken (not on any track), and the bottom mattress was very sunken in. In addition to giving me a backache, it made it very difficult for the person in the top bunk to get to the bathroom at night. One of us was stepped on at least once a night!
The tiny TV did not work, and there was no real good place to sit, as the cabinets above the bed are very low and make it impossible to sit up. The kitchen table was very wobbly and the chairs were not comfortable to sit in for more than five minutes.
Please also mention that it's a third-floor walkup with no elevator! Not a huge deal for young people, but older folks may not want to deal with that every time they come and go.
Having said that, it's in a very good location - the Central Market was two minutes away and the neighborhood felt safe. If you're looking for comfort, this may not be the best choice. Good for budget traveling as long as you're okay with an old mattress and sleeping bunk bed style.