First, Mariel provided easy-to-follow steps in order to get her place.
Once I've arrived, I've ran into her family - lovely people that will make you feel like home (something very important sometimes when you're travelling abroad!).
The room is clean, comfortable, and has everything you need - down to a mini-fridge.
As for the location, it is not the "ultimate downtown location" but every shops you would need (pharmacy, convenience store, etc.) are in the vicinity, and there's also a "transport circus" at which a bus will take you to an MTR station and in 20 mins. you will be where all of the action is happening!
Bottom line: I would recommend staying at Mariel's place!