We had a great time at Marco's. The place is clean, warm (there at new Year!) spacious and comfortable. When we spoke to him he was very helpful. Not easy to find the actual building if you don't know it but easy if you have instructions so make sure you find out where in the square it is first. Also is using public transport ask Marco for the name of the nearest metro as we were told 3 different stops to get off by strangers and we walked for miles. Also have a map of the roads around the apartment as this will prevent getting lost when getting off either of the 2 buses that stop near there. Once you know these public transport into Rome is relatively easy, although buses tended to be full when we were there.