Elisa's place was comfortable and clean. they were really nice and helpful.
they are 15 min away from the Duomo. you can get the Metro from Corveto station to Duomo. €2 single ticket. However, you can buy the 3 days pass which is cheaper.
tips:
It is very easy to visit the small town around Lago Como. I went to Varenna Esino and Bellagio, the most known ones. You can buy the tickets on trainitalia app. From Milano Centrale to Varenna Esino (1 hour journey). there you can get the ferry to Bellagio (15min).
I recommend to go earlier, so you can enjoy the two towns.