My friends and I stayed at Marco's apartment in the end of August and it was great. The apartment is right in the center which is super cool and convenient! We liked everything about the apartment! It's clean,very nice decorated, good Wi-Fi, air conditioners in both rooms, nice beds and the bathroom with lots of towels! We also got a bottle of wine and it was also coffee and tea in the kitchen which was great as we came late and did not have a chance to buy it for the morning in the supermarket.
Marco was also very quick providing all answers to our questions!
We definitely recommend this place to stay! And if we go to Florence one more time- I would try to book this apartment again!