If you want to add a slice of modern japan capsule experience to your HK trip, stay at TheNap. Host isnt so responsive in Airbnb but 100% helpful via phone calls 24/7. I called at 1am and 5am and was able to get help. Fully automated self check-in and check-out, you just have to keep your booking confirmation code and ID with you. Thanks for the short but pleasant stay :)