I just got mine and maybe Osprey fixed the top attachment hook breaking issue and the plastic taste issue. Mine does not have a hook, it's a hole in the center (see image) that you have to slide the attachment clip from the bag and fasten it. Also there is no plastic taste. I didn't even rinse mine and don't taste any plastic. This is replacement for a Camelbak crux that I did not like. The Osprey is a far superior product, pretty impressed so far.
Vancouver, BC Canada