I knew of the reputation of the ninja kitchen and bought the 11 in 1 as a means of potentially saving on fuel costs. I can’t give figures for any potential savings but I do know cooking times are now a fraction of what they were.
Easy to learn how to use and I like the way the slider takes you from one means of cooking to another and lots of cooking methods within each. The instruction booklet is easy to use, I made a couple of minor errors but only down to inexperience, nothing spoiled and no damage done