The warm welcome we received from Marco and his daughter Elena was phenomenally friendly and extremely hospitable. They took the time to go over the apartment, how the appliances worked, and answer questions on local sites and cuisine. It was a pleasure to meet them.
Relative to the apartment itself, rather than reiterate what others are saying in their reviews (very clean, well equipped, good AC, close to metro, etc), I'll focus on items I have not seen in other reviews which may be of interest to future guests. First, the apartment itself has a lot of security and safety features, including a security system, barred windows (it is a ground floor apartment), fire extinguisher, and gas and CO2 detectors. Second, the apartment is located on the ground floor (basically at street level) directly facing a busy, noisy street; sleeping, even with ear plugs, might be a challenge for some guests as it was for us (with ear plugs). Third, the apartment is pretty small, consisting of 3 rooms plus a bathroom (one small and one larger bedroom and a kitchen with a kitchen table and chairs in the middle); there is no living room and no seating beyond the kitchen table chairs so "lounging" around must be done on the beds or the one kitchen table-like chair in each of the bedrooms or at the kitchen table. Finally, carefully read the House Rules for this listing. There are a number of potential additional fees that are quite unusual in our experience with AirBnB stays over the years. For instance, there is an EARLY checkout fee which is 15 Euro if you checkout BEFORE 8 AM, so if you have an early or even mid/late morning flight, plan on paying 15 extra Euro. Given that the checkout process is simply handing the key to the host and saying "goodbye" face-to-face (no walk-through or anything) this fee makes little sense and is inconvenient... I've never run into anything like it. Perhaps the hosts should consider a drop box or just allowing the guests to leave the keys in the apartment, without a fee, which is the norm in AirBnB stays in our experience.