We booked Florjan's airbnb as it was within our budget. At the time of our booking, there were very few airbnbs available that could accommodate 4 people. If you're staying with just 2 people then Florjan's airbnb is definitely worth it. But 4 people was a bit pinch.
The most disappointing thing was the sofa bed. I travelled with my brother and two friends. The two friends stayed on the sofa bed while my brother and I stayed on the bed. No instructions on how to assemble/put away the sofa bed were provided... We didn't know how to put it back. So it made the already small apartment even smaller. The sofa bed was unfortunately very filthy dirty and had many stains. Our friends took our extra blanket as a sheet as there wasn't enough bedding.
Take care on the staircase going to the apartment as it is quite tight and there is no light. Luckily it's only on the 1st floor but if your luggage is large/heavy you may struggle. We had a small carry on and managed fine.
For what it's worth I really enjoyed the location. Far enough from the touristy side of Florence yet close enough to walk. They also provided a great guide, which we highly appreciated! Communication was quite good as well.
Overall, I'd highly recommend this airbnb for couples but wouldn't recommend it for a group of 4.