Excellent location. We were able to walk everywhere. Lots of places to eat and visit within a few hundred meters. The H bus takes you right to the train station.
Apartment was very nice and as described. Even though it is in the middle of the busy and wonderful Trastevere neighborhood, it was quiet (with closed windows).
One suggestion would be to provide consumables (toilet paper, dish soap, paper towels) available or in greater volume.