We stayed in Nicks apartment for a month and found everything very satisfactory. On arrival, we were greeted by Elmo (the concierge of the building), a super friendly guy who was always around to help. The apartment itself is spacious and modern and comes with a big living room that we used a lot. It also has a nice balcony, the perfect place to have your morning coffee. The wifi worked smoothly, which was a big plus. The area is great too, with plenty of cheap and cheerful restaurants close by and within easy walking distance of Testaccio, Ostiense and Trastevere.
Finally, although we did not meet Nick personally, he was always reachable and ready to help. Highly recommended!