We had a great stay in Rome in this aparment.
Claudia was super friendly and welcoming and always replied to the messages fast. We arrived in the morning but we were able to leave our luggage to the apartment before the official check-in time which was very helpful.
The aparment itself is quite spacious, clean and all the furniture looks relatively new. The balcony is big and it was nice to eat breakfast outside enjoying the view and sunshine.
The neighborhood was quiet and peaceful. The location is ok if you are up for walking a little. Trastevere's "heart" and the Jewish ghetto are both within a relatively short walking distance.
We did a little cooking and the kitchen could have been better equipped (there was only one small pan for example). This was a minor flaw and overall we could recommend staying in this aparment. :)