We highly recommend this address. Federico's appartment is located in the Trastevere. It is a bit noisy in the evening but what a delight to be in the heart of this vibrant area where you can easily find delicious restaurant (very cost effective) and from where you can easily visit Rome by bus or on foot. The appartment itself is very pleasant to live in, large and with everything you need (the beds are very comfy too). We were warmfully welcomed by Federico and his father both of whom are very nice people. Federico has been very helpful before and during our stay (advice about means of transportation, restaurants and he even booked the taxi for us when we left). That's why we highly recommend this place.