Thomas made both the check-in and check-out processes very easy. He was always very responsive whenever I messaged him through the AirBnB app. There was even a time when I mistakenly locked myself out of the apartment and Thomas was able to get me a spare key right away so I wouldn't be left out in the cold.
In terms of the apartment itself - it had plenty of space for 2 of us, though more could likely fit comfortably. And it was in an excellent location, never being too far from any of the key sites in Florence. The only drawbacks were that it was a first floor apartment right off the building entryway, so it was common to hear noisy cars driving by or people slamming the front door on their way out of the building (though this is much less prominent at night when trying to sleep).
By and large we had an excellent time in Florence & cannot say enough good things about Thomas's service.