For the location, it is a 10/10. The studio is located in a very central area close to key attractions. I can not think of a better place to stay. Carlo is very helpful and was there to welcome us and check us out. He was even flexible for an early check in and managed storage for our luggage on check out. He also helped in booking Taxi from and to the airport.
The bed and pillows are very comfortable. There is some noise from the street and nearby pub but nothing not expected in such area. No noise or music after 12:00am. So you should be ready for a good night sleep.
Saying that, watch out: keep in mind the apartment is on third floor with no elevator, be ready to go up ~50 steps. Entrance door is quiet narrow and bathroom small but manageable over all.