I bought the all bells and whistles Ninja Foodi 15-in-1 cooker earlier this week - my thinking was healthier meals and less energy usage. I'm not sure if I've made a terrible mistake! This thing is a behemoth on my kitchen counter (looks like a cross between R2D2 and a Henry hoover) and is so bloody complicated (and I'm quite a practical person)! There are seemingly no decent UK cookbooks and the recipe selection which came with it is really limited. As for energy efficiency, not much difference to oven/grill according to my smart meter (although I appreciate it takes less time overall). So... does anyone have one and if so, do you love it? It was £300 and I'm really tempted to box it all back up and return it!