Hey Hemi;
I figured you might want to hear form other forum members too, which may help in your decision making.
I have also purchased notes and other stuff form Hong Kong and have had no problems at all. Of course if the item is a replacement notes or such, I would check to see if the serial number falls within the established range. As kid_kc79 said, you have to realize that the time frame for receiving the merchandise may be a little bit longer, so don't panic if it takes more than a week. Each year I send postcards from the Cayman Islands and it takes at least 2 1/2 weeks before they arrive in Canada.
Also, check their feedback and if you want click on some of the buyers to see where the eBayer has shipped.
Hope this helps.