This is a fantastic place. Like many European apartments, it is small but it is also extremely well-designed. Each detail is made so that you can fit into a smaller space without losing too much quality of life. We were 4 people so this was particularly important!
The location is great - no street noise in the apartment as it is far enough away from the action, but 15-20 min walk from amazing food, parks and nightlife. For tourist-y things, it is closer to 30-40 min walk or a 20-min taxi ride.
There are many little touches that make the place feel homey - and we actually ended up using the guidebook in there about Rome and solving the puzzle that is in one of the bedrooms. Overall, I would definitely stay here again!