I have three, I use them as casks rather than fermenters, they just, its a squeeze, fit in a 3 door bottle cooler I use as a mini cellar.
In my opinion they do not match the brewtech brew bucket ss conical. Its in a different league.
The Chinese made Klarstein are a thinner gauge, not as polished, flat bottomed and no thermowell. There is a band of rougher finish around the bottom of the side which I feel is a hygiene risk. The clips that hold the lid on are not as robust as the Brewtech ones. The spot weld that holds the base rim to the container itself go rusty. They are much cheaper.
If anybody has an idea for a stainless steel cask that fits x3 into a Blizzard 3 door bottle cooler please let me know.