How does it differ from the classic Staub Cocotte?

The Essential line uses a lighter-colored exterior and simpler finish details than the classic black matte Cocotte. The cast iron, matte black interior and spiked lid are the same idea.

Do I need to season the matte black interior?

No. The interior is enameled, so it needs no seasoning. Wash it by hand and avoid metal utensils that can chip the enamel.

Is it oven-safe, and at what temperature?

Yes, it is oven-safe. Check the knob rating on your version; some knobs are rated lower than the pot itself.

What size meals does 5 quarts handle?

It suits soups, stews and braises for about four to six people, and it fits a whole chicken or a large loaf of bread.

Does it work on induction?

Yes. The cast-iron base works on induction, gas, electric and ceramic stovetops.

Is it worth it over cheaper enameled cast iron?

It offers heavier cast iron, better browning and a self-basting lid than budget pots. If you braise often, those features matter; for occasional use, a cheaper pot is fine.