My friend and I stayed here for a few days and it was perfect - amazing location, very safe, and the space is gorgeous. Location: you will literally be steps from the pantheon and other sights. This was my first time in Rome so that was exactly what I wanted. The location was also convenient because it was near a main street and bus lines which went to the main train station of Rome (supr helpful when taking public transit from the airplane or heading to the high speed rail to travel to another city). The neighborhood was very safe and the building itself even has a doorman. Alex and Luna were very responsive and even had a representative that was available within the hour to fix anything. They were so sweet and even taught us how to use the washer when we couldn't figure it out. There was also an elevator and air conditioning. Very welcome in the heat!
One callout is that the bed is huge and can comfortably fit 2 people. The sofa bed is the size of a twin so can only fit one person and the springs are easily felt. For this reason I would recommend only using the bed (which is completely easy to do!).
Overall this is an amazing place to stay, with great hosts and I would def stay here again!