This was the first time I booked an Airbnb and I couldn't have been happier. The location was awesome- in between the Piazza Spagna and the Trevi Fountain with restaurants all around (and not just touristy ones). I was excited to have air conditioning as it was a warm 91F but the street is also shaded so the flat was cooler than I expected. I would definitely recommended the private taxi. Although it's 50€ one way, I can imagine taking my luggage on the crowded metro. The driver there was friendly (only spoke Italian but tried to understand the Spanish I know) and helped me with my 50lb/23kg bag up the one flight of stairs to the flat. I hope to find myself in Rome again and will definitely book with Carlo again!