I couldn't care less about the recipes and tutorials; for me the thing that such a service provided was small portions of ingredients. At the time I ate at work for all of my meals during the week, and so needed to cook maybe 3 meals/week (for one person). There's no other way I've found to get 1tbsp of butter, or flour, or 1 green onion. So for me it eliminated a fair amount of food waste.

That being said now that I don't get free food from work, I'll be buying groceries and cooking often enough to use the larger portions.