Pros
Apartment location was perfect! Close to so many great restaurants and the best gelato in town (with 1 euro options it was hard to not go every day). Laura's restaurant recommendations were great and such a thoughtful touch. I'm an overpacker so we took cabs to/from the bus station (wheel suitcases don't agree with Florence streets), but it's definitely walkable if you don't mind carrying your stuff. everywhere else we wanted to go while we were there was an easy stroll. Laura was very responsive (I had issues calling a cab for our departure,) and her neighbors are SO nice (I ran into them in the hallway during the cab fiasco and they called another company for me and acted as translator). We really enjoyed sitting out on the balcony enjoying the bottle of wine Laura gave us and it was very convenient to have some basics provided (water, juice, apples). Apartment was comfortable and clean.
Cons
Wouldn't recommend the tour company she has a booklet for (only did 1 wine tour, but it was pretty disappointing). And while it wasn't an issue for us, there is definitely noise at night from the restaurant/bar downstairs and the hallway door is VERY loud (but only used during the day when you should be out, not lazily trying to sleep in like I was when we heard it). Similarly, since the apartment is loft style it can be difficult when one person wants to sleep and the other doesn't. And pretty obvious, but the bedroom is in the loft area accessed by a narrow spiral staircase, which we had no issue with even in the middle of the night, but might be difficult for some people and dangerous for sleepwalkers.
Summary
Great place in the perfect Florence location, would definitely stay here again or recommend it to a friend. Might not recommend it to very light sleepers, but anywhere in a city will probably have the same issue.