TL;DR: I strongly recommend this place.
The apartment is spacious and offers natural light. The water heats up fast and the kitchen is of reasonable size. The WiFi isn't always super fast but it works.
It's in an Excellent location for visiting the Vatican and ancient Rome on foot. The street has amazing food and prices if you look carefully and have patience. There's delicious yet affordable ice cream and pizza within minutes on the street, and even wonderful Italian breakfast spots for tight budgets.