How warm is the Carson Long Puffer compared with a short down jacket?

Warmer in coverage, not necessarily in fill. The knee length blocks wind on the thighs and seat, but the 60/40 down blend is a step below high-fill-power down jackets. It is built for extreme cold with layers underneath.

Is it actually waterproof?

No. The shell is water resistant, so it sheds snow and light rain, but seams are not sealed and it is not a rain shell. In steady rain, wear something waterproof over it.

How does the fit run?

It is a relaxed fit cut to the knee, so it runs roomy by design. Most shoppers can take their usual size to layer a sweater or hoodie; size down if you want a closer fit.

Can I machine wash and dry it?

Machine wash cold on a gentle cycle, then hang to dry. Do not bleach, iron or dry clean. Avoid the dryer, since the care instructions call for air drying.

What pockets does it have?

Two zippered chest pockets, two lower flap patch pockets and an MA-1-style utility pocket on the sleeve with a red ribbon. That is more secure storage than most parkas at this length offer.