We enjoyed our stay here very much, and the view of the Duomo was certainly spectacular and as shown in the photos. The location was perfect for visiting all the top sights and museums, as well as for nightlife, restaurants, etc. the elevator was very helpful for upper floor (though it did have feel of a condominium which was not very full, as we rarely saw others entering or leaving). The apartment was clean and the bed comfortable. We didn't stay long enough to really utilize the kitchen, but some guests might be disappointed in its small size, lack of full oven, etc. The clothes washer was nice to have and worked well (with drying rack on balcony - good thing the weather was perfect, especially for December!).
One complaint would be the shower, which could be hard to use for larger person, and the drain seemed to back up so you stand in water unless the shower only runs very slowly.
We got the feeling that the apartment was managed by a company, and communications were with various people (although very timely through email and mobile phone). The person who met us and helped us check in was not anyone who we had talked to, so we did not even know to expect someone else.
Overall the apartment was very nice, comfortable, conveniently located, and a great value. And you could not beat the view of the Duomo from the terrace, which would be perfect to sit at the little table with coffee or wine. We would be happy to stay there again (and longer next time).