Our stay in Mong Kok was far too short, but Frank's hospitality made it lovely! The room is small, but sufficient for a short stay and it has everything you need - a bit like a ship's cabin. One caution: if you are very large, you may struggle to get in and out of the shower/toilet. The room was spotlessly clean and the beds were comfortable. Frank was very helpful and accommodating.
Thanks for the great stay.