let's start with the minimal cons:
material is lightweight water resistant nylon that is slightly noisy and wrinkles easily.
no storm flap over the zipper.

now the pros:
packs into its own pocket (though it wrinkles less if carefully folded and tucked into back vent).
hood folds up into collar, and I'm very fond of the height and look of the collar when the hood is hidden.
zipper does have inside flap that appears to prevent water from permeating.
sleeves are long enough to cover most of my hands (I like extra long sleeves) but do have velcro adjusters so they can be pushed up.
fit is perfect at chest and hips, while not being TOO big in waist (I am an hourglass curved size 16 (waist considerably smaller than chest and hips) and ordered a size large jacket). I could probably fit a light fleece or sweater under it without it feeling tight at the chest or shoulders.

unfortunately during my entire trip in Seattle it has been sunny, so I haven't been able to test the water/air permeability. while it is a very basic rain jacket, it doesn't look cheap, and I feel that amazon's price of $30 was worth it.