Small, narrow, wireless, sodastream this is for me the best in the range. It takes only a little space, moved anywhere in the kitchen because it requires no wired (like all sodastream). The pressure is perfect and is done simply by the gray line. The change of the cartridge is simply too. Be careful though the price of gas cartridges, the SodaStream brand offers to exchange them for saving and recycling, but at the last moment they charge 11 more for postage ... not nice!