Staying at Monika's apartment was a great experience!
Apart from the room being in a perfect and clean condition, it just looks great and has a very relaxing atmosphere. The communication with our hostess was without any troubles, the check in ran smoothly. Monika is not just very kind and competent, she took the time (more than half an hour) to talk us through her favorite spots in the city and gave us many tips on what to visit etc.
Maybe the best thing about the flat is its central location. The Uffizi and Ponte Vecchio are just 5 minutes away. It's very comfortable being able to just stop by and drop your shopping bags or groceries off while not having to drive or walk for ages until you reach your Air BnB.
One thing to mention, it can get loud at nights. This is not in particular anybody's fault, it is just that the apartment is in the city center and if people walk by or cars drive through you can have quite a lot of noises. This did not bother us a lot, but if you value sleep over everything, consider bringing earplugs or sleeping with closed windows.
In total, it was a perfect stay and if we return to Florence someday we hope that we can stay at Monika's place again.