Got the Splashdowns after getting sick of soaking in a cheap(er) pair of shop-bought "waterproof" overtrou. They would seep through in less than five minutes of rain and then the best you could say was that you were evenly wet.
I've only had the Splashdowns out in one mildly wet commute so far, but came through it dry as a bone. They even managed to breath enough to avoid getting wet from the inside. Admittedly, I wasn't hammering it to work.
Love the leg zips, fits over bike shoes easily. The only suggestion I have is that these pants are cut reasonably slim. I'm not huge at 1.77m and 70kg, but with baggies and liners underneath the waist band is pretty snug, so maybe go up one size
All in all, really pleased so far, totally recommend.
Jet Black / M