Clean and cozy apartment. Its more of a spacious room than apartment but its enough.
Localisation of the place is in the middle of trastevere. Lots of bars restaurants near by. Its very close to every attraction.
Unfortunately it is very busy street with few bars next to the apartment. On weekends it is very loud almost as you would be in the bar. The bars are closing at 2am so if you are going to stay till that time that is ok for you.
Fortunately Pier was a wonderful host and gave us two bottle of proseco as the refund. He said that he will change the windows for new ones in the future.
All in all i recommend the place. Just watch out for loud evenings at weekends :).