The beer Maxx beer pump made me and my guests surprised immensely positive. The beer comes even after hours cool and fresh flown unless the replenishment, good pre-cooled in the refrigerator, not assumed is. The delivery was made quickly within a few days. The device and the description have a high quality, there are three carbon dioxide cartridges at (per keg is a cartridge needs - so replenishment is best in your order). The use was ultimately easier than I had feared after the first reading of the specification. But I had decided to go for the good "Beck's". In the "Beck's" -Fässern you can without enclosed adapter simply 'sting'. Then select the keg in the system, carbon dioxide content and already runs the cool wet. The day before inserted into the freezer cooling elements were also after about 6 hours. Garden Party in sunshine still frozen, which as previously mentioned pre-chilled beer in the party kegs thus remains absolutely cool. I had additionally ordered four cooling elements. I could have saved me. The equipment cleaning is simplest. - Conclusion: Those who like to celebrate ner times cool draft beer tringt - Beer Maxx I can only recommend, since it all goes without electricity and the 5-liter drums are favorable. How long the beer keg has been tapped remains drinkable (14 days is given), I could not test - my stock was drunk up. :-)