Domenico was a good host. He responded quickly to my emails/questions before arriving. He said he would come to change the towels and check everything after two nights but he never came.
The apartment was as described. 100% Ikea free! Very original and the shower with jazz music is clearly a plus! However I need to mention a few negative points: the bad smell (sewers, or fish tank in the shower?), the splashing taps in bathroom and kitchen, and more importantly the bad mattress. The kitchen was poorly equipped, and old leftovers from previous guests had not been cleaned up.
Overall, if you are not expecting something very comfortable this is the right place. Its location is excellent, walking distance to all major monuments, easy access from the airport, and plenty of restaurants and bars.