A 3/4 year I have the KS observed with an intermediate gauge. Of course, the consumption depends on many things: room temperature, target temperature, food handling, doorway ....
In one-person use, I use position 2-4, middle temperatures are then around 7 ° C / -17 ° C.
Depending on the circumstances, is the consumption (all figures based on year) between min. 90kwh and max. 140kwh. The standard consumption of 160kwh I myself never reached in midsummer after shopping. The total time of the power consumption at just 110kwh is annualized based (or 0,30kwh / day). Excellent, only 2/3 of standard specifications!
Otherwise: In the price range can be expected -selbstverständlich- no luxury Accessiores. What it offers but is a solid, functional and unexcited device that shows no major weaknesses (as the annoying 1.5l bottles).
Conclusion: Very economical, solid for little money. So 5 stars.