You can't ask for a better location in Trastevere. The apartment is just steps away from cafes, restaurants and some of the most beautiful churches in the area. It's also really easy to access downtown and the big sights via the main bridges.
I would caution any light sleepers from sleeping with the windows open here. The cafes and bars below the apartment are open late - especially on the weekends. You'll hear the murmur of crowds until 2 or 3am. Add to that some loud pipes in the building and you'd be best to find some earplugs if you wake up easily. But, that proximity is part of its charm, too.
Our only unexpected challenge during the stay was a battle with the washing machine - we could not figure out how to get the clothes to dry! I think it was more user error than anything wrong with the machine.
Ekaterina is a wonderful host - check-in was seamless and she was readily available via WhatsApp to respond to any questions. Overall, a wonderful stay!