most shops offer a satisfaction gaurantee, meaning if you buy a board, and you dont like it, you can bring it back and exchange for another one, so long as you take care of the board, no scratches, dings, keep it clean.
I rode a subjekt this weekend and it is fun, but really different. It is very loose and I had a hard time setting the heelside edge. Once it's on edge though it really bites in hard. It's fun...just really different. Not sure I'd buy one myself.