Works great for me too. If I didn't practically mainline the stuff when my joints act up, I'd move like Ozzy.
Paulos, if regular glucosamine doesn't cut it for you, you might look into getting some with MSM (methyl sulfonylmethane) or CM (cetyl myristoleate) added. They're supposed to potentiate the effects of the Glucosamine. Mine has all 3, and it's literally near instant relief.