Hotel Genesio

Pros: Conveniently located near the historical centre, adorable little terrier hanging out in the front room, friendly staff, and cheap (we paid € 89 for one night for a double room). The bed was comfortable enough, and we had a view onto the pretty courtyard from our room.
Cons: The walls are thin, so we overheard a couple having an EPIC row in Italian a few rooms over at about 2am. Also, the «en-​suite bathroom» was humorously bad. It was tiny, the size of your typical WC, but they managed to shove a shower cubicle in. How? You may ask, well. By simply sticking the toilet and bidet into the shower cubicle! The shower had excellent pressure, but you had to straddle the toilet in order to use it. I’m a rather slender size 10, and I had serious difficulty with contorting myself into a shape that allowed me to shower without sitting on the toilet. And as with many things in Florence, you really get what you pay for with the breakfast. You’re better off dropping € 5 – 7 at the café on the corner of Aprille and Nazionale (across from Independence square).
All that said, we weren’t overly bothered by the ridiculousness of the place because the location, price, and length of our stay (one night) made it worth it for us. Plus, a lot of things are made better with the addition of an adorable little terrier :). Would I stay there again? Probably not. But if you need a cheap room that isn’t a hostel in Florence proper, give them a go. Just don’t say you weren’t warned about the bathrooms ;).