In heavy rain you will get wet. BUT the jacket dries out in just a few minutes once the sun is back out. It's not a rain jacket, but the only time I've worn it and gotten wet was in a thunderstorm at altitude. DWR coating is excellent for a while, but, like any other brand you'd consider trying, you will have to retreat it. This jacket is a awesome piece, and a must in any arsenal.

I know this question is old, but I will answer for anyone else looking. Last Saturday I wore this jacket out in a steady rain (although not a down pour) and it soaked through the shoulders within a twenty minutes. The jacket excels for what it is meant to do, provide protection against the snow and wind, but don't mistake it for a rain jacket. Although it'll do for a dash from the car to the bar.

I think this would be great for your bike commute even in heavy rain. The seams are lap glued so there's nowhere for the water to make it through there, and the soft shell itself along with it's DWR coating do very well against the water. I ski in this piece in Utah and it hasn't wetted out yet even in the heaviest of snow all day. edit/addition: you'll never have to retreat the DWR on this jacket. The best way to restore it is to be sure to wash it somewhat regularly, and then to dry it on medium heat. The DWR coating is similar to a wax, so the heat of the drier redistributes it across the jacket and it will be good as new.