My family (Mum, Dad, 2 kids) had a great 2 night stay in this lovely apartment. Two proper bedrooms (sleeping 4) unlike some apartments when someone has to pull out the sofa bed in the sitting room! plus a small balcony which was a lovely bonus.
The apartment is quite quirky, with a tiny bathroom and kitchen, but all you need for a short city break. The location is amazing - a historic street in the Centro Storico district. Walking distance to Vatican, Roman Forum and Pantheon. However, it was also quiet at night, so no problems with sleeping.
There is very effective air-con (thank goodness - 37° whilst we were there) and Julia leaves out packaged croissants for breakfast. There is also a killer espresso machine in the kitchen to kick start you in the morning!
One thing to note - the apartment is the penthouse, with 84 steps and no lift! Not a problem for us, but worth mentioning.