Does anybody have any experience with Hakkapella Damasteel? What is its edge-holding ability like?

Also, is it any different to sharpen than other steels? Is there a trick to it other than simply having the intestinal fortitude necessary to rub a damasteel blade on a rough stone?

Thanks.

http://www.damasteel.com/pdf/93x-martensitic1.pdf

Damasteel uses RWL 34 which from what I have heard Is pretty awesome...