Nancy H.
Yelp
Check Inn is my favorite hostel to stay at when I'm in HK. I've been to Yesinn at Fortress Hill and Causeway Bay, Cynthia's inn, and Dragon Hostel, so I've had my fair share of hostels.
Check Inn has dorms on four different floors: 14th has the nicest deluxe rooms and common room, 13th has a bigger common room, female dorms, mixed, and a private three person bunk bed, 3rd floor is the most open as it is the reception and has the oldest kind of bathrooms, 2nd floor is the smallest but each room has 6 occupants instead of the usual 7-9.
The family/friends that run the place are nice people who can also speak English. If you ever need any tourist help or getting to places you can ask them, they are very patient. One of them went over saying Tsim Sha Tsui with a lady way too many times.
Anyways, the bathrooms are always cleaned, all the floors but the 3rd have rainfall shower heads (my favorite). Nights range from $178-$232HKD. Always book earlier to get a cheaper price and don't be afraid to call them up to book either.
Just an FYI though if you have heights, don't like climbing up bunk beds (the ladder goes straight up and can be slippery in socks) let them know or ask for a bed on a lower level. Also, make sure you get an email from them regarding check in time and they will give you the key code into the apartment complex, if not then email them or get their number so you're prepared.
I've been staying here wayy to many times the fact that I've been on every floor and the receptionists now me by name...