We spent to week in Antonio's apartment with our two small kids . We enjoyed it a lot, it's perfect as a home base to discover the city. It's located pretty much in the centre of the city, making it easy to get pretty much anywhere quickly, but still we found the neighborhood to be surprisingly quiet. The apartment provided just enough space for the four of us, it's basically one big room with a kitchen, eating, and sleeping area, plus, as a special highlight, a huge, sunny terrace as big as the aparment itself.
We would definitely visit here again; highly recommended for two adults and up to small kids!