Really clean and well equipped, maybe 1-2 extra adapters for electric devices would be good. I spent 5 nights at extra bed and it was really good for being a sofa bed. No traffic noise (Italian flats are noisy in every case - toilets, water pipes, doors locks... these are really noisy but there was quiet at night).
Small Carrefour express and bigger market nearby - and local restaurants are good so is it not necessary go further to eat.
Bus line 81 just across the street goes directly to Central Station about every 10 minutes and line 43 to nearest metro station Sondrio - we never waited more than 5-8 minutes to get a bus.
All problems were solved quickly (mainly my misunderstandings), keyholder is different than instruction video but at same place.