Carmine's place is exactly just as described! It is literally in the HEART of Florence! To make this review simple, I'll just list down the pros and cons during our stay:

WHAT I LOVE
1) Carmine is an EXTREMELY responsive host! He replies to my messages instantly and had the initiative to send us detailed directions to arrive his apartment a week before our arrival!
2) Carmine's apartment is VERY VERY convenient! There are dozens of eateries within 1 minute walk, a market that sells fresh produce just opposite, train station is just 5 mins walk away, and the Duomo is also 5 mins walk away.
3) The apartment is extremely clean! It is cleaned everyday! Spotless!
4) The rooms are surprisingly big in size! So is the kitchen and bathroom! We were very comfortable throughout eventhough everything is shared with other guests.
5) The WiFi speed is amazingly fast! But the speed drops tremendously after dinner time. Perhaps due to every guest is using. A reason to go to bed early though!

WHAT I DON'T LIKE
1) Apartment has no lift and we had to climb 4 flight of stairs with our luggages when we arrived. Not a big problem though as we had to only do it once!
2) Rooms are facing the market street. It starts to get very noise at around 7.30AM as the market stalls are opening for business. It was also very noisy during weekends. Drunkards singing and laughing at top of their lungs at 3.00AM in the morning. Not a problem though, as ear plugs will fix it all!

All in all, we had an amazing stay here. Amazing host and Amazing location. Just perfect!