I've been there with my husband for tsim sha tsui and kowloon tour.
it is very close to ferry terminal and tsimsha tsui station.
location is perfect but nothin is attractive, room and bath tub is too small and even no space to put on a suitcase.
there are 4bottles of water in the fridge, but be carufel to drink the watson water. it cost 25 hkg per bottle, we didn't know that and drank, because no label on the bottle.

singapore airline flight attendant and so many group tour people are waiting for lobby to check in/out, it was so crowded with them,

Size of room wouldn't be great for families, but otherwise everything is excellent! Stayed many times at The Kowloon!

I would probably stay at the Kowloon Hotel again because of the location. We could walk everywhere, use the metro or quickly get a very cheap taxi. I would take advice from another reviewer and go for a bigger room. The mattress did me in, my back just didn't like the hard mattress. The staff were lovely and put on another layer, this helped a tiny bit. In our party we had two ladies sharing a twin room but the rooms were so small and beds were only 2 cm apart ,one ended up hiring another room. Also hardly any seats in the lobby when you are waiting for other people.