Andrea and Natalie were perfect hosts and friends. They made me feel very welcome, and would answer any question I had. They even extended invitations for dinner, gelato, the beach :)
The location was perfect for me. The Colloseum is only a 30min walk. And from there you can also check out the Imperial Palace and other landmarks. It's easy and cheap to get a train to the Vatican City (but I just got into the habit of walking because there are some many wonderful hidden gems in the city).
This was a highlight for me. I thoroughly recommend!