Claudio's place is excellent value, great location, 10 minutes walking to the colliseum but also very close to the Metro and buses are right out the door. It's a great neighborhood that is close to everything but not touristy.
the front two rooms are noisy as they are above the street so pack some earplugs. Claudio is a great host and was quick to reply to any questions. we had a great 5 days with this as our home base.