We stayed at this apartment for 3 nights as a couple. Very great location! We loved walking down the stairs everyday and entering the market for fresh produce/ juice. There is a Gelateria right outside the entrance, try the tartufo classico.. Large amount of surrounding restaurants and shops. The apartment itself was modern and spacious. The bed was extremely comfortable, difficult to get up in the morning :) At night the Campo is very busy and active, though we barely heard anything! They must have invested in sound proof windows, no noise at night in the apartment. We were nervous about this reading previous reviews, but had no issues with the noise.
Cons: We ran out of hot water very quickly in the shower (only used the rain shower, not the wand and side shower). Also the kitchen could use more proper plates/bowls, there were a few plastic. No wine glasses either. Other than that the kitchen was well equipped.
Even with the above cons we would definitely stay here again without hesitation. Outside noise not a problem, amazing location. We were able to go shopping and bring bags back to apartment easily. Great stay!