Saying "it's so easy, they deliver the ingredients" is a non-sequitur. Sure you don't have to buy groceries, but cooking still takes a lot of time and effort. Sometimes it's a solid hour that I spend cooking, then a half hour eating, and a half hour cleaning up.
I get four hours I spend at home between work and sleep, and two of those are spent preparing to eat, eating, and cleaning after eating. It's much quicker and easier to pick up KFC on the way home instead. That's the problem Soylent solves.
On the one hand, it can be kinda nice getting everything you need for a new recipe delivered to you. But I have a pretty well-stocked larder and a binder of recipes I make semi-regularly so it didn't really solve a problem I have. (And it's not inexpensive either.)
For anything decent, you need AT LEAST 30 minutes, usually more like 60+.
And then comes the cleaning of pots, pans, filling the dishwasher.
That's a WHOLE HOUR I could be wasting my time on HN instead!
I learned of these from obesity researcher Stephan Guyenet's blog: http://wholehealthsource.blogspot.co.uk/2014/07/instant-pot-...
I use the same Instant Pot LUX60 model. I haven't tried any other model.
Cookbook author Melissa Joulwan has an algorithmic approach to weekly meal prep that results in delicious and easy weekday meals, if you're willing to make the "cook 2 hrs on weekend + cook no more during the week" trade-off. It's not the mere minutes that Soylent promises, but for some folks reading this it might be useful. It's paleo so easy to adapt to high protein/low carb/high veggie/whatever floats your boat here.
http://www.seriouseats.com/2016/09/how-to-clean-maintain-cas...
And as far as the active part is concerned, I like to listen the radio and if I can get organised so that I can prepare the food while one my favourite broadcasts is on the air, I don't even notice I "have to work".
anecdotal at best, but a friend years ago was diagnosed with adult diabetes and told he had to change his diet. this guy never cooked. part of his transition was cooking classes provided as part of his diabetes counseling. he discovered a world of quick and easy meals, many in a single pan and all were healthy.