Very small, but modern studio exactly as advertised in an old building. Instructions on location and check-in were exact and easy to follow, and Jef was prompt and friendly in his communication. Though located on one of the busiest tourist streets near Trevi Fountain, the studio is quiet and A/C and Wi-Fi worked perfectly. There was no toilet paper when we arrived, and the hot/cold water in the shower fluctuated slightly, but neither of these diminished the quality of our stay. Jef also gifted us with a welcome bottle of wine. Grazie!