We had a great time! The location is better then perfect!! A quite street from the main street, straight to the Duomo. We were with 3 so it was spacious for us. Also with four it will be very spacious with enough space and 2 bathrooms. With more you have to use the sleeping couches which seemed stabel and comfortable but you will lose privacy since the couches are in an open earea with the double beds. (The omfortable double beds are separated from each other, 1 in each apartment: it are 2 apartments linked to each other by a door.)
We strongly recommendthis place!! Also clean!