I've been researching mini-keg systems and the reviews are all over the place, or the system has been unavailable for months on end. I am turning to AHB members for recommendations on a mini-keg system, CO2, that will carbonate 128 ounces (1 gallon). Looking for the best system with great customer service, available to ship to the states, and the best quality. Price is secondary to quality (I'm not rich, but I save my money and buy the best I can afford). Many thanks. Mark in Colorado.