It's actually a set of apartments managed by a company. They didn't respond via Airbnb. They have a reception, but I didn't know it before the booking, so I couldn't contact them until I've booked. The location is among the best in Trento. The apartment was modern, comfortable, and well maintained, but it lacked some details (e.g. there was a washing machine, but no detergent / washing powder; there was a dishwasher and tabs for it, but nothing to wash dishes manually, not even a sponge; there was no cloth to clean the surfaces, at least we didn't find one).