At those temps, you don't want to get wet. I find I can be wet at 40 degrees and stay reasonably comfortable, but, if I stop for more than a few minutes, I'm going to be cold for a while.

If you sweat a lot, deal with that by wearing a good base layer. Then you can go with a waterproof jacket if the situation needs one, and something lighter if not. Merino wool is very soft, pretty warm (even when it's wet), and pulls moisture away from your skin like you wouldn't believe. I can climb hills in my goretex jacket if I'm wearing a long-sleeve merino tee underneath, and be perfectly comfortable; I'd be sweaty and clammy doing the same thing in a poly or cotton shirt. Same goes for pants.

I think the Showers Pass stuff feels like a heavy, laminated plastic bag, personally. I wear either a goretex jacket when it's cold enough to demand one, or a jacket that blocks about 2/3 of the wind and won't soak through for an hour if the temp is above 45 or 50. The second one is good down to surprisingly low temps with a thicker base layer and a wool neck gaiter.