Ekaterina's apartment in Trastevere made for a great stay in Rome. The location is perfect. It's just a quick walk into the historic city center for many of the major sights. I would recommend using the "mytaxi" app for farther distances, or if you're short on time - works almost exactly like Uber, but is much cheaper than using Uber in Rome.
We really enjoyed having dinner and spending the evenings out in the neighborhood near the apartment. I agree with many of the other reviews that it is a quiet and safe area, and there are plenty of restaurants within a 5-10 minute walk.
And Ekaterina and Valentina were excellent hosts - they were able to accommodate our request for an early check-in, and Velentina even rushed over to welcome us when we were going to be even earlier than expected. Both are very friendly and pleasant to deal with.