We had a really nice stay at Harold's! He's a very nice, laid-back guy - he's definitely more than just the guy that open you the door, show you the room and that's it. The place was really cool and the main tourist attractions are easy to access (Coliseum is like 25 min walk or just 2 metro stations away, Vatican is easy to go with the train station close-by...). Harold gave us some good advices about what to do in town and good places to eat around the flat. Plus, he was flexible about the time we arrived. All good! Warmly recommended!