Soraya's place was perfect for our stay in Florence. It is centrally located and about a block away from both the Uffizi and Ponte Vecchio bridge. Soraya even let us keep our luggage at the apartment until the room was ready. We were also able to leave our luggage there the day we checked out which was really nice.
These apartments do have more of a hotel vibe than an apartment vibe, so keep that in mind. There are 5 (I think) suites on one floor of an apartment building. It's not a bad thing, but something to be aware of. We were traveling with another couple, so it was really nice to be able to be in the same building without having to share a space.
Everything was extremely clean and comfy. The kitchenette was well stocked. The only downside of the apartment is that it can be quite loud at night. One night that we were there happened to be a major Italian holiday, so there were people out in the streets partying for most of the night. It's not something that could have been prevented or changed, but it is something to be aware of. One of the trade offs of awesome location is that there can be lots of loud people around that great location. I assume this is the scenario at any apartment in the city center, so just keep that in mind if you are booking in this area.
Overall, I would definitely recommend this apartment if you are looking for a nice place to stay in the city center!