I'll offer more praise for the Beer Gun. One-handed operation, the ability to purge the bottle and headspace with CO2, easy to clean. My only complaint is the tiny rubber stopper, which tends to fall off and get lost, sometimes in a bottle of beer! (Thankfully, it was in the first bottle I checked.). John is a really approachable guy, supportive of local clubs and competitions (the winner of the Indiana State Fair competition wins a Boilermaker brew pot), and he attends NHC every year.