Giulias place is in a great location, perfect for getting around Florence. We went when it was particularly hot and the apartment stayed cool, though this may be due to it not getting a lot of natural light.
It is let down by a couple of factors though. The main one is the cleanliness. The apartment wasn't particularly clean at all which was disappointing. Thankfully the bed was but the floors definitely were not.
Secondly it has not got good sound proofing. I could hear conversations (and less safe for work things) from the apartments around me, and people walking by on the street. This wasn't the end of the world and didn't bother me too much as the neighbourhood would quiet down around 11 but if you get particularly loud or promiscuous neighbours it may be a problem.
The cleanliness problem is one that can be fixed and I went in to detail of the issues with Giulia. Once that is sorted then I would definitely recommend staying here.