This may be lengthy:
First of all, I HATE riding in the cold. Like I'm that guy who is always the first one to bust out the winter gear and feel that I'm particularly whiny and sensitive to the cold. With that in mind, I must say that these tights are spot on. They are pretty warm and the inner fleece is definitely thicker than other heavier tights I've owned (Louis Garneau, Sportful) and the AmFIB stuff does a decent job at blocking the wind. Now mind you that that AmFIB stuff is fairly abundant so it may feel a bit restricting at first, but if you're like me and hate cold winds than you'll really appreciate it. The bib straps at first seemed very flimsy but after about 15 rides I'm convinced they're sturdy enough and basically feel invisible on my skin (over a base layer). The chamois is AWESOME IMO. Now everyone is different but this chamois to me is excellent and it's probably one of my favorites ALL TIME. The rear pockets are great and pretty much invisible. They hold things very well and don't look like you're wearing a cargo system on your back. They can hold my wallet (Rigid wallet), keys, 2 candy bars (snickers) and probably a few CO2 cartridges if I wanted to stuff it. I would definitely buy again. I've ridden in 35-45 deg weather with 10-15 mph winds and 50-90% humidity (that's the cold that makes your bones ache) for 3-5 hours and they kept me warm. And did I mention that chamois?? Totally comfort even after 5 hours (but that's my bum, not yours)
Assos is my go-to brand for cycling shorts and now for knickers. I cycle about 5x/week for 3+ hours at a time and the Assos products always provide much more comfort than some other brands I have tried (e.g. Gore, Pearl Izumi). Weather-wise, I use the knickers in weather below 50 degrees F and in rain. As noted by other reviewers, the knickers did ride up a bit in the calf but nothing too annoying - I find bib tights a little to restrictive in the ankle area so this is a small tradeoff for me.
In 36-60deg F weather these over-shoes have kept my toes from freezing on descents (I get numb fingers and toes easily). They're small enough to store in my tail bag when things warm up and they slip on easily without issue.
As far as being waterproof, they're good enough for anything except the really wet days. If you're going over big puddles it seems that water can splash upwards into regular (summer) road shoes. On days with light rain, steady mist, and gentle showers they have been excellent and kept my feet dry.
I live in the Northwest and this jacket fails to disappoint, having now used this almost one full winter season. Breathes well, superior wind resistance, and warm. I've ridden in the low 30's with only a mid weight base layer underneath, once when raining and remained dry. Versatile. Love the side zippered pocket for valuables/phone. I've have other name brand winter jackets, but this is by far superior to them. Buy it. You won't be disappointed.