I've stayed in quite a few apartments in HK around this price range, and I can say that Florian's apartment is tied for the number one spot on value, comfort, and cleanliness.
Although the apartment is "just" a studio, everything is so well organized that the space feels open and inviting. This is helped by the amazing floor to ceiling windows and the adorable patio (which itself is just secluded enough to offer privacy). The bed is comfy, the couch is comfy, the bathroom is new and everything is clean. In short, a perfect AirBnb apartment.
Location-wise, this is perfect. I love staying just west of Man Mo temple, as you have quick access to the restaurants/bars of Central, without being bothered at all hours by the noise and rowdiness.
Check-in and communication with Florian was great-- he's a very friendly and kind guy. There was a slight problem with the A/C remote that he went out of his way to resolve, even while on vacation!
Overall, I can't recommend this apartment enough.