Giovanni's place was perfect for 2. He had a cot and a king size bed. The A/C was amazing to have in Italy in the middle of the summer. The AC does not reach the bedroom but it is cool enough that it isn't uncomfortable to sleep. The wifi also doesn't reach the bedroom and sometimes wasn't accessible in any part of the apartment whatsoever.
Giovanni was a great host, very accommodating and was accessible when we had questions about the wifi. As I needed it for work, he was super helpful in finding a way for us to get it.
The location is perfect- just steps from the Ufizzi and Ponte Vecchio and it a far walk from most of Florence's other highlights. Despite it's central location, there was virtually no outside noise (although you can sometimes hear people in other apartments from the bedroom & bathroom).
I also had read the other reviews where people had critiqued the place and by the time I got there Giovanni had already taken care of those things.
Overall it was the perfect place, and I would recommend and stay again!