Most banks in HK, either they are well-known or not, are usually very strict about opening a bank account. They open it easily, but you will have to provide information eventually beyond what you would have to provide in your home country.
On the other end, when everything is settled, it is very easy to move money in and out. And I'm not only speaking about the most well-known banks in HK (HSBC, Standard chartered, DBS, etc..). And a good thing, is that you get a multi-currency account. You can keep funds in their original currency, and just shift them into a stronger currency when you find the time/rate suitable.
In addition, the exchange rates are extremely competitive.
All of this comes with a price. A complete, long and demanding opening procedure.
By the way, the requirement of capital being above 100k USD is bulls**t.