Can you use the gas and charcoal sides at the same time?

Yes. The two sections are separate, so you can run the gas burners while the charcoal side is lit. That lets you sear on gas and finish with charcoal smoke in one cook.

How many people can it cook for?

It is best for small to medium gatherings. The two-burner gas side and the charcoal section together handle a few steaks, burgers or a couple of chickens, but a large party will need batches.

Does it come with a propane tank or charcoal?

No. Fuel is not included, and the propane tank and charcoal are bought separately. The built-in bottle opener and tool hooks are included, but S hooks are not.

Is it hard to move around?

It rolls on two casters and two wheels, so it moves fine on a flat patio. It is heavy, so lifting it over steps or curbs takes two people.

How does it compare with a dedicated gas grill?

A dedicated two- or three-burner gas grill gives more even heat and a larger cooking area for the same footprint. The ZH3002N trades some of that for a charcoal section and the option of real smoke flavor.