Awesome place to stay and highly recommended. My partner and I stayed for 4 nights on our honeymoon. The location was perfect; right next door to all the major sights (forum, coliseum, etc). The building and the apartment were both clean and easily accessible. There's a tiny elevator but a few stairs are still required to access it for anyone looking for something fully accessible. We alway used the stair to work off all the pasta and pizza we ate :). It's on the 5th floor and the view from the terrace was amazing, a great place for a glass of wine after a day of sightseeing.
Mirko was totally hospitable, letting us store bags before check in and offering any assistance we needed. He had guide books, power adapters, and useful local information in the apartment. There was a problem with the hot water not working one day. We called him and he came within 10 minutes and had it fixed. Highly recommended!!