Reilly wrote a review of Columbia Watertight II Jacket - Men's on April 4, 2017
Familiarity: I've used it several times
Fit: Runs large
Let's be honest, if you can get this jacket cheap like I did, it's a steal. If you have to pay full price, or even $50+.....meh.
Don't get me wrong, it's a solid performer: Fully taped seams, adjustable hood/cuffs/waist, and it's packable. However, it lacks the pit vents that are so desperately needed during those the springs/fall ascents. Even though the jacket is breathable, no amount of selective permeability can substitute direct ventilation.
As for water resistance, I have only been able to use this shell in snow and sleet conditions. Water does seem to bead off of the jacket with ease, so I don't foresee water repellency to be an issue.
Sizing is akin to most Columbia products: Slightly larger and longer than my other shells, but I welcome this as it allows me to add a couple layers for those colder days. I could still wear this jacket with just a tee underneath, but it would probably start to look more like a medium on me.
Price vs cost makes the watertight II an excellent entry level shell. Thus, it would make a great backup or short ascent tech layer, but I wouldn't rely on it as my primary shell.