His place here is very nice. 5 min walk to the Vatican and it's also close to Ottaviano where they have a train that will take you to and from the Rome terminal very fast. There's also a bus stop that will take you anywhere you'd like to go in the city and it's only about a 5 minute walk from the apartment. I would highly recommend staying here.
Ps make sure you ask the host for recommendations because he gave me some good ones.