Great: The location of this apartment is perfect. Dario responded quickly when we had questions during the stay, and he allowed us to check in early. The bed was comfortable enough, and the apartment was more than enough space for two people. The apartment was quiet at night. Dario provided us with restaurant recommendations after we checked in, but I had already booked reservations after doing research online.
Could be better: The only toiletry provided was liquid soap, so be aware that you need to bring your own (I suggested to Dario that they provide this, so maybe that will change!), and there are no washcloths/loofahs, so bring one if you need one.
Other notes: We checked in ourselves, and did not meet the hosts. I contacted the hosts within 24 hours of arrival to get the check-in information. You have to climb a lot of stairs to get to the apartment.