Matteo was a great host and was very flexible with the check-in (because we had troubles with our train). His apartment offers great space for four people and its location is right in the center - 5 minutes walk to the Collosseum.
Matteo also gave us great local tips for restaurants, places to see etc.
Would recommend to stay at his place anytime!
For January it was just a little cold but you can heat up the apartment with the aircondition ;-)