I have not heard much about them either but after taking a quick look at the website I could not in good conscience tell you to purchase from them. There are two things that immediately stand out. One is their grading scale. They grade up to AAA+. Although this AAA+ grade is the one they say ships with a certification from the European Gemological Laboratory (EGL), I think that grading to AAA+ is misleading the customer.
This in itself may not be so bad, but they also state they sell "Japanese Akoya" and use the JPEA Blue Tag to promote that. First, you can not guarantee that your Akoya are Japanese and second, the JPEA tag does not guarantee top quality pearls and it certainly does not guarantee origin (see
http://www.pearl-guide.com/jpea-blue-tag.shtml).