The apartment is in a fantastic location and we had a great time here. Marilu was very kind and helpful & gave us some great tips. The shower is really good and powerful and the apartment has a small but cute balcony .
The sofa bed is ok , but you might find it a little uncomfortable for 2 people if not used to sofa beds , - we found putting the mattress from it on the floor more comfortable.
The kitchen equipment is a bit sparse , ( eg no kitchen knife to cut bread etc ) and there is no oven, so not suitable if you are planning to cook, but there is a restaurant right next door below , and loads of fabulous ones nearby.
We loved the area of Trastevere - vibrant fun, and always full of life , great street musicians and loads of good bars and cafes too., and within easy walking distance of all the sights. All the streets around are cobbled so comfortable flat shoes a must !