This review will be split into 2 components, I do apologise.
Firstly, the unit itself is located in a very accessible location, you are walking distance from the Kowloon - HKIA transfer station as well as the Austin MTR. For the price you cannot really beat the location. There are also plenty of food options. The unit itself is a bit dated and could use a through cleaning of caulking in the bathrooms, windows and perhaps vacuuming.
Downsides is that this place is not totally legal. HK does not allow for the sub-dividing of homes into smaller units for short term rental. The host himself leaves instructions on what to say in the event the police/authorities come knocking. AirBNB is aware of the situation and does not care, as I had wanted to cancel when I found out but they informed me that was not possible. For most folks this may not a problem, it worries me, as such I didn't stay for the whole booking.
The host himself is very responsive and seems like a nice person overall