The apartment was much more spacious than I thought it would be. Location was great! Close walking distance to everything, but in a neighborhood where you could get better food at a better price than you can in the thick of the tourist traps. Modestino was super easy to communicate with and willing to be accommodating. Check in and check out were both was easy to arrange. He made the arrangements so I didn't have to ask him when and how to check in/out. At check in he gave us tips that helped the rest of our stay but kept it short and sweet.
Separate note: if you get a chance to hear him play a concert of traditional Italian music - don't miss it. Really fantastic!