This version of Sub Krups is cheaper than that in silver finish. It is obviously equally functional. The principle is simple, you have to buy a "Torp" 2 L (To order on The Sub.com, this is where it is cheaper, about 10 a barrel 2 liters). A pipe is clipped into the drum and the other end to pass into the pouring system. It's really very simple. To prepare the beer it is better to put in the fridge the day before and it will be at the right temperature in 1 hour if you have to wait 10 hours.
Brands that provide are Heineken, Affligem, Desperado, Pelforth the Tiger (yes), was also an Italian beer and some Dutch.
The design is very successful, we are in the aquatic environment because it really reminds submarines with torpedoes and placed in its warhead.
But I think this kind of machine is still a luxury.