This was my first stay in Rome and after a lot of consultantation, we shortlisted Andrea's apartment.
As the title suggests, it is right next to the Colosseum (within 100 meters). Clearly, the location of the apartment is the biggest advantage.
Andrea was very kind to arrange a baby cot for our 1 year old daughter & came downstairs to receive us & help us with our luggage, as we got a little lost. He also explained the tourist spots in Rome & didn't say anything about the contract as it was already very late in the night. Andrea was a great help to get us a baby stroller on rent & a cab back to Fiumicino airport for 50€.
As the apartment was on first floor it became a little challenging with heavy luggage but a small elevator came to our rescue.
Icing on the cake was that he let us have an extended stay (till 8:00 pm!) as we had to leave in the evening for the airport.
I would highly recommend this apartment for its location (150 meters from the train station & less than 100 meters from Colosseum).