Last month, I had two sessions at 42 Bute Street. There are dozens of these types of brothel walkups, but this one had recent forum reviews.
The cost is $390 and the staff gives a box of lemon tea when you exit. It's $340 if you go in afternoons.
Although it's on Bute Street, the best way to enter is from Portland Street (see map). When you turn right-side into an alleyway, you'll see the obvious sign.
When you walk up the stairs, you will eventually face a gated section. You should hear a buzz as someone will buzz you in.
This place is huge and is the largest brothel complex I've ever seen. It spans two sections and there are probably 20+ rooms total.
The ladies are pretty dismal in appearance. But if you're here for BBBJCIM, there is guaranteed performance.
One thing to note...it seems this place doesn't do the standard performance of shower, shower BJ, massage, body licking, rimming, bj, etc. This is standard modus operandi at most brothels. Here, it's more whatever you request. Maybe that's a good thing because the service is more a la carte. If you cannot speak Chinese, I'm sure if you want BBBJCIM, they'll understand your hand gestures.
I had two BBBJCIM, one was good and the other was stellar.