I have. It's standard middle aged chinese women there.
Last time I went I'm not sure the name of my attendant but damn was she money hungry. On the i told her I'm just looking for a HJ and she asked how much I'd tip. I told her $40 and she replied asking $60 instead....
I feel like $40 for a regular HJ in these conditions is fair so i told her no and she agreed to it, but by then i was already annoyed