Although we never actually met Marco, he was very communicative and nice. We were slightly inconvenienced upon check in when there was unexpected work being done in the apartment and we were unable to use the space for a couple of hours, but other than that we LOVED our stay.
The apartment is excellent. It was spotlessly clean, extremely well finished, well stocked, bright, and a decent size. It isn't huge, but it works well for two people. The kitchen is tiny, but I actually cooked a few meals in there with ease. The bathroom is wonderful. Arguably the best part about this place is the location. Extremely close to the river, very close to Piazza Navona, and generally in the middle of all other tourist attractions. The neighborhood is wonderful and has some great restaurants too. Overall, it was a great experience.