We stayed in Artevere apartment just after the Easter weekend in 2013. On a positive note the flat is very individual in its decor and facilities, we liked the jazz in the bathroom, I felt like I was in a film standing shaving in front of a mirror! Domenico was extremely helpful with everything, we needed to stay an extra night and although Artevere was not available he was able to provide another room at short notice, even driving us with luggage across town. Trastevere is a perfect location as almost all parts of Rome are walkable from there and there are plenty of bars and restaurants in the immediate vicinity. My only negative comment is the noise level at weekends but that is something you ought to expect as you are in a very vibrant area of the city.