I can't recommend this apartment highly enough. It's spacious, bright and cheerful, and perfectly comfortable, including the bed and various spaces for relaxing. It was meticulously clean, had all the amenities I needed (including a washer, iron, kitchen supplies, high quality linens, and even bathrobes). The temperature in the apartment was easy to control (both for cooling and heating), which was especially important since it was April during my stay and the temperature outside each day fluctuated wildly. Since I was in Italy to take Italian language classes, I especially appreciated the access to Italian TV and movies and having various spaces to work and study. The outdoor spaces are extraordinary. I regularly ate dinner on the balcony and had coffee in the mornings on the rooftop. In terms of location, if you like Trastevere, you will love this location. It's central enough to be convenient but enough out of the fray to be quiet, for the most part. I only had a couple issues with noise coming from parties at the area bars, but it only happened on the weekends, which you should expect if you are staying in this area of Trastevere. Because the apartment is on the top floor, there are no issues with loud upstairs neighbors. You do have to contend with a lot of stairs everyday, as there is no lift. But I didn't mind them at all. Walking them everyday made me feel guilt-free about all the gelato I ate.
Alojsia was a perfect host. All communication was timely and clear, and even when there was a mix-up about check-in, which was entirely my fault, she was extremely patient and accommodating. She was available to answer any questions I had, quickly addressed anything that came up, and made sure I had what I needed during my stay. I will definitely try to book Alojsia's apartment for my next stay in Rome before I look for any other.