Wow! As a family of four, we couldn't wish for a better quiet base in which to explore Rome from. Alonso is a great host. The place is clean, functional and comfortable. You won't be disappointed.
If you plan to stay here, it's a ten minute walk if you are pulling suitcases - this is hard going if you have just arrived to Rome as it's hot, especially for kids, so try to travel as light as you can, as in reality the walk is maybe 7 minutes from metro Ottraviano A line.
Your neighbour's with the Pope! It's that close fo the Vatican city.
Rome involves a lot of walking as the metro stops are spread out, but has a team and bus service all included in the metro card. Lloyds under 12 travel free with adults, so invest in your metro card for 1 day, 48 (€12) or 72 (€18) hours, or a week even af it's worth the money.
Be warned don't attempt the Vatican on the free Sunday unless you are willing to start queuing at 730am at least as it is very popular, and closes at 1230, so very little time to do it. This is indeed made the expensive skip the queue price ticket may be worth doing, book in advance of the day is key.
Thanks again super host