Salvo was a great host!
We had a little miscommunication regarding check-in time so we had to wait a little before we got the code to open the lockbox with the key. He came over a little while later to photograph my ID and tell us about the wifi password (and the little trick for the fuse to not go off when the shower or AC are in use). He did not speak English but we could communicate perfectly with G Translator.
We were very positively surprised by the interior of the apartment. The outside area/location looks a bit rough (dirt all on the side of the road and quite broken down buildings) and is around 20 minutes walk distance from the historic city center (with all the nice buildings, restaurants, castle, sights, etc.). There is also a quite steep ramp leading up to the apartment which can be a bit hard to get up on, especially if you have issues with your legs.
The cleanliness and facilities in the apartment were wonderful. The AC was great. The internet was superb (on the last day it was no longer working, but I'm not sure if that was an issue from my phone or the wifi). Having a little kitchenette and coffee machine was also very useful. The shower is amazing, it has even a little back messaging thing with a huge upper water flow.
There were two little water bottles in the fridge, which were a god-sent since the tap water is not drinkable and when we were there, the weather was extremely hot. Thank you Salvo for being a lovely host!