Well, I used Absolut, but just because I had it. I know people who claim Greygoose has almost no taste to it. As for the two extra beans, Friberg claims it's more for decoration than additional flavor.
All total, with beans and vodka, I figure it costs between $40 and $50 for the quart of extract...still waaaaay cheaper than buying it a small bottle at a time. And I go through the stuff like crazy.
This is my first batch so I'm not entirely sure. But I made it with Tahitian vanilla beans, so I'm excited to taste it. And I had my dates mixed up...it's actually going to be ready for filtering tomorrow