We had a great 4 night stay at Alonso's apartment! The apartment is very close to a metro station and a short walking distance to Vatican museums and St Peters Basilica, a great food market just around the corner too. Apartment is clean, modern and well equipped. Good air con.
Alonso was flexible in the check in time and was very understanding while our train was over an hour late, also let us check out an hour later. Our experience in this apartment was 5/5.