Fantastic apartment. Right on the doorsteps of the vatican. We loved the fact that there was 2 bathrooms, so our group of 2 couples can each have their own.
Bus route 64 stops down the road and right outside, and this will take you everywhere you need to go (from Roma terminal to apartment). No washing machine but laundromat opposite.

Top tip: Fantastic restaurant called I Quattro Mori nearby. Carrefour supermarket is up the hill on the right (7 mins walk)