Well misterjt111 I don't know if you've found your Chinese girl but in my experience I have fucked dozens of Oriental girls and never had a bad experience. Some not so good as others but always worth while in my experience. They are my preferred choice as the Oriental culture is for a lady to please her man.
You will find plenty on Vivastreet and some on AW and yes they change on a weekly basis, but generally the number advertised is for the girl not the flat. So you can always keep in touch with her afterwards if you wanted to see her again. If I really like a girl I will ask her if she would visit me in my hotel and get her number, and most of the time they give it to met. The majority of them are students and I have found some who are totally independent and work on the days they do not have lectures. Some can be a bit older than you expect but Oriental females tend to look 10 years younger than they really are. Do steer clear of the Chinese medicine or health centres though. They can be a bit variable in my experience.
They don't always do anal but I have never had a problem fingering, pussy licking and rimming. They do usually want an extra £10 for owo, but I usually decline that. I have always found them to be accommodating and provide sex in all positions, sometimes squealing but mostly not. They also give you the full time you have paid for and I have never been rushed with an Oriental girl.
I would be interested to hear of nay experiences you have had.