Vania's place was perfect for our two nights in Rome. It is only a couple minutes walk to the Metro, which will take you to all the places you need to go. It's only two stops to the main train station, 8 stops to the Vatican and 4 stops to the Spanish Steps and Trevi Fourain. There are also lots of cafes and restaurants close by. We walked to the coliseum in 20 minutes.
Vania was super accommodating, and always available if we had questions. Great value as well.