Our stay at Mariel apartment in Trastevere was great. Trastevere is a vibrant exciting place to stay and Agatas apartment is perfectly located in the middle of the action. It is a bit deceiving on first entry through the graffittied front entrance door and up old wonky concrete steps but the apartment is modern, well equipped and very comfortable. Aircon, great shower, well setup kitchen (although why would you prepare your own food with all those wonderful restaurants and cafes at your doorstep). It is a very short distance to the Ponte Sisto bridge for access into the city and generally walkable everywhere if you don't mind using your feet for transport. I would highly recommend this apartment and location to anybody thinking of staying in Rome. We didn't actually meet Agata or Giampaolo but Silvia her cousin met us and was lovely, we even availed ourselves of her offer to take us to the airport for 35 euros (taxi would be 48 euros)