I loved the apartment itself enormously! It definitely has an atmosphere. We were the group of 15 people in Rome, so I was able to compare 4 different apartments - and ours was the best in terms of interior.
The area is also very nice. The street is really quiet - even during the New Year night. Tevere is right there, which made all our walks super picturesque.
I also liked the linen and towels and all that stuff, everything new and cosy. It was also very warm (and outside it was about +2C).
Paolo met us at midnight without any problems, appreciate that.
There might be a problem with hot water for a bigger group of people - the boiler is enough for one shower, so the next person has to wait.
And (as it was mentioned in some reviews) we did have problems with the neighbour, although we tried to be as quiet as possible. But people with kids should be careful, the neighbour created some tension. He knocked whenever someone walked louder or when we used the washing machine (at daytime) or when we watched a movie. )
But overall I think this is a great apartment, located in a lovely district and very worth its price.