I stayed for a whole week at Cedro28, a delightful little place in Trastevere -- a quiet sanctuary in the midst of a lively neighborhood. It's cozy, yet spacious enough for one or two people. The bed is also very comfortable and there's a set of nice linens (big towels, which I don't normally find in Europe) in the bathroom. Vanina was responsive to all my questions both before and during the trip. Two times she came right over when I was having some trouble with things in the apartment (both of which turned out to be user error, but it seemed to be no trouble at all for her). I would come back and highly recommend for any Roman holiday.