I've been to those places many times... spoken via google translate with many of the ladies.

Some observations:

- yes it's "fast food" ... definitely not "courtesan GFE" but hey if you want a fast reliable nut, they are fast and reliable and pretty much always available.

- at least according to the ladies Ive talked with, they are not trafficked. Yes, add some grains of salt but: they all have their own cell phones, they will gladly google translate pillow-talk, and they've all told consistent stories - they use the phrase "Chinese vacation" and my understanding is that there are advertisements in China / Korea / etc where ladies are invited to travel to the US on a "vacation" for a few weeks, using tourist visa, get plowed by horny American dudes, make money and go home.

- to some extent they are indy contractors. They'll give me their direct number and I can schedule with them directly.

- they do move around often so don't expect to build a lasting relationship. But a few are based here full time.