Ordered this jacket after a bit of research--our family is travelling to WDW in January, and I wanted a light raincoat instead of a poncho that would pack tightly.  To me, raincoat has advantages over a poncho; i.e., better fit on sleeves, more durable, quicker to 'button' down (admittedly, my experience with ponchos has been cheap ones from a big box store).

Features that make this jacket a great fit for our needs (bought one for my wife too, in a different size of course):
--Breathable, but waterproof (as opposed to water resistant)
--no insulating liner (perforated nylon liner=airflow; waterproof material isn't in direct contact=no sweat), so great for rain in mild temps
--inner pocket that the entire jacket folds/packs into as a small bundle for easy transport (you can't 'lose' the pouch you pack your jacket into!)
--bottom 'hem' cinch cord for a snug fit if you don't want wind coming up from the bottom