It was my best stay experience in Rome. The apartment was so clean, and well connected by public transport. Pietro is a nice hospitable gentleman, and check in and check out conducted smoothly. We arrived around 10:30, so he let us drop our stuff there, hand the keys over and return later at 13:00. In this short time, we walked to via dei re di Roma, had some Suppli (one of the best Supplis is Rome can be found there) and then visited Basilica di San Giovanni.
Pros:
-There was no hidden cost.
-Metro station is few steps far from doorstep.
-Hot water is permanently available thanks to Gas operated boiler.
-Two clean bathrooms are so practical.
-There is a big branch of Pompi only 600 meters from apartment :)
Few minor cons:
-Walls are a bit thin (typical in Rome due to age of buildings) and apartment is in ground floor. So you hear all conversation and commuter noise of neighbors.
-There is only one air conditioner for cool and heat (in main bedroom) which barely serves other bedroom.
I absolutely recommend the place and host, and will check for it's availability first, when next time want to visit Rome.