Our stay at Nicola's apartment was perfect. Easy check-in process (contactless 100%), in our opinion great location (10 minutes to Vatican, up to 30 minutes to Ottaviano metro station). There are good restaurants near the apartment with really kind people inside. Nicola was really helpful, we didn't worry about anything, because we known that we can write to him every time with every question about Rome.
The apartment was very clean, equipped with everything what was needed. The balcony is quite small but enough for us (Nicola had informed us about it before we reserved the apartment). The windows were prepared to block the noise from the street (it's really quiet inside). Big and good quality TV. Air conditioning was working perfectly. Nice, huge shower. A huge advantage is that there is small kitchen for private use.
I highly recommend this apartment.