Does it come with a hose and regulator?

The listed contents cover the stove itself with its ignition device. A propane hose and regulator are not listed, so check the box contents before you plan a trip.

Can it use butane canisters?

It is listed as a propane stove. Use propane as specified rather than butane canisters.

How many people can it cook for?

Naturehike lists it for fewer than three users. Two burners suit a couple or a small family cooking a simple meal.

Does it have a wind shield?

No. The stove is listed with no wind deflector, so set it up out of the wind or bring a separate screen.

It has a built-in ignition device, so you light the burners with the push of a button instead of a match or lighter.

Is it good for backpacking?

It is a two-burner stainless steel stove, which is heavier and bulkier than a single backpacking burner. It fits car camping and base camps better than long hikes.