We were a group of 4 friends and our stay was nice. The apartment is a little old, but this is quite normal in Italy. Everything in the apartment worked fine. The sofa bed is a little unconfortable, since the mattress is a little old. It could be an issue if you stay for a long period. The apartment has a lot of space, and kitchen seems well equipped (we didn't acrually cooked). Metro st. is closeby, so that is a great plus. There is also a nice café and ice cream shop close by, so you can have a nice breakfast/coffee break.
Thank you Antonio, for your hospitality! :)