I would highly recommend a stay at Appartamento di Design Chic in Trastevere. The location is excellent, the apartment is comfortable and stylish, the facilities are brilliant and everything you need is available in the apartment or close by.
From being greeted by Giovanni and given a tour of the apartment and some recommendations of what to do and things close by to the communication throughout and also the accommodating nature of everyone, we couldn't have asked for a better experience.
With Rome being super hot during our stay, the apartment was a haven of respite in the evening and then a short walk away was Trastevere with any amount of food choices and all major tourist attractions are maximum a 30-40 min walk.
The friendly nature of our hosts, the apartment itself being so nice and the location meant it was a stay that I would recommend to anyone.