The apartment is great in every aspect. It was clean and spacious, with everything you will need for your stay. There is an elevator, so no trouble at all even if you travel with a big and heavy luggage like me. There are also a number of bakery and supermarkets in just 100 meters from the building, which was very convenient.
Alioscia gave clear check-in instructions and advised me all means of transportation to get to the apartment from the Roma Termini. So I have no problem to arrive the apartment even I'm traveling alone.
I met Alioscia in person to check-in and he was super nice and wait for me at the building door in advance and help me with my luggage. He also gave detailed introduction of the apartment and everything that I may need to use. Communication with Aliosica is smooth, and his responses were almost instant. I once sent him messages after midnight to ask about something and thought he would come back the next morning, but he replied in just few minutes!
He left great suggestions of places you shall visit, and also local tips on good bakery, cafe, restaurants and ice-cream places. I visited some of them and they are all very good! The Colosseo is only about 10mins walk, and Piazza Venezia another 5-10mins. Pantheon, Piazza Navona, Spanish Steps and Fontana di Trevi, all within 15-30mins walk, just in different directions.
I would definitely recommend Alioscia's place to everyone.