Pretty good, thought it was bigger
from Anonymous on 21/12/2016
The Kayfun 5 already comes with an extra tank made of steel, which is the same size as the glass tank (22mm diameter), and not engraved. I thought it was a good idea to get the 'bulbous' tank, since I never use glass (I tend to drop things), plus it's bigger and beautifully engraved and looks bad ass. I have now installed it and I am quite happy, even though the difference in size is rather minimal (23mm dia instead of 22), therefore it contains only about one ml more of liquid. Machining, fitting etc. are up to SvoeMesto standards. It is however quite expensive (for what it is), so I would suggest to buy it only if you really don't like the straight look of the stock tank....
from Anonymous on 22/07/2016
Kayfun 5 looks and feels much better with this steel tank, didn't like the original straight look, now matches my K4