Overall: best Airbnb ever and location was unbeatable. Would recommend and would never stay anywhere else in Rome. We walk everywhere!
Space: it was clean and super cute style. The lofted bed gave tons of space and the bathroom was large. There was plenty of storage. AC was a lifesaver. Other reviews mentioned issues with the hot water but that was not a problem at all and the washer machine was great. On the 1st floor (2nd for Americans) so just a few stairs.
Check-in: quick and easy. like another review stated the address is 66 not 6 and the bell says Emilia. That was our only confusion was the communication was quick.
Location: close to amazing pizza and gelato. Right in between Vatican and colosseum. Seriously the best location ever.
FYI: the bed is lifted and you have to climb a ladder. It is easy but those with limited mobility should probably stay elsewhere.