Full marks to the location where Tommaso's house is. The house is just a 5 minute walk to Roma Termini where you can catch trains to go to Pisa/Venice/Florence and just adjacent is the Metro station for local travel. As the area is busy it felt safe to walk in the nights too. There are good food options available in the area and just below the apartment is an Indian restaurant :).
Tommaso was prompt in answering all the questions we had over whatsapp during our stay. The house was neat and he provided us good breakfast options covering for our entire stay, he also gave one 24hr train/bus ticket which costs 7 Euros, thanks for that. He had maps ready for us showing how we can travel either by metro or walk to important locations. He had all the basic amenities in kitchen/dressing/bathroom. I recommend this place.