Corso 37 is Amazing!!
The location is perfect, walking distance to everywhere you could possibly want to go. If not a short taxi ride really doesn't cost much at all.
Maurizio was a great host. He was quick answering questions before we even got to Rome and then when we arrived he gave us lots of great suggestions of places to eat.
The apartment is lovely and well furnished. I would definitely recommend it to anyone wanted to stay in the centre of Rome.