I've been staying here since February, and it's my favourite place I have stayed at in Hong Kong by far. The room is furnished comfortably, I can have my cat stay here with me, and the staff are attentive, friendly and very helpful. I enjoy the atmosphere and neighbourhood and it feels very safe. My room gets cleaned weekly, and anytime repair needs doing, the handyman is diligent and quick to help. The building has a nice common area to hang out in with friends, which is great when you want to have people over but don't have enough space in your room. Better yet is the rooftop garden, which is a rare luxury in Hong Kong and it's beautiful and has a great view.
Location is also convenient with Mong Kok nearby and multiple MTR stations in walking distance.
Laundry is available in the building but you do have to pay for it and it's not quite as cheap as some self service laundromats I have used; however you do pay the price for convenience.
I hope to stay here long term!