As hppants can testify, if you're wearing separate jacket and pants, make sure to zip them together. Klim is high-quality gear, so they'll send the "other half" of the jacket zipper to sew onto your pants.
Got it in today. The large was too small and the xl is a tad too big but leaves room for layers. I rode about 15 miles with it on today(84 degrees) and was surprised how comfortable it is.