One cooking session and the week is decided — a menu built on your tastes, a single grocery list, a minute-by-minute prep order, and storage that keeps Thursday's meal safe.
Deciding, shopping, cooking and clearing up — repeated nightly. Doing most of it once takes far less total time than doing it five times.
You're tired, the fridge has three unrelated ingredients in it, and delivery is one tap away. The plan is what removes that decision.
They're genuinely convenient. Ten meals a week at that rate is a significant monthly bill for food you could cook in one session.
Vegetarian, gluten-free, a picky family, a kitchen with no oven. A menu you won't actually eat is a menu you'll abandon by Wednesday.