Stay at Valentina's place was great! Check in was really easy, we just had to stop at the cafe on our way to get the key. For me personally, the appatrment looks smaller on pictures than in real life. There is all you need for your stay in Rome, and it's also in a great spot (right next to Vatican). Valentina was really helpful and she replied immediately! Would totally recommend :)
*great tip: while you are there, pizza al taglio from Bonci Pizzarium is a must try, and it's just 5 or 10 minutrs walk from the appatrment :)