Christian S.wrote a review of Salomon Guardian 16 Alpine Touring Binding on December 24, 2014
Familiarity: I've put it through the wringer
So the first generation Guardians had durability issues, and I think they've been resolved, since I've had no problems with my 2nd gens. Granted, they don't ski like a true alpine binding, and the stack height is still higher than I'd like. In comparison to the dukes I used for years, they're definitely an upgrade. I broke 2 pairs of dukes, and have sworn off marker forever.
They're marginally lighter than the dukes, and easier to push uphill. You also don't have to take them off to flip into hike mode, which is nice. Sometimes I encounter an ice buildup problem in the heelpiece when engaging hike mode, but a few whacks with a pole does the trick. They keep you locked in with their high din rating, and I haven't pre-released yet.
Sure they're heavy, but they're perfect for quick tours or sled accessed stuff. It's the downhill performance that matters though, right? So until something better comes along, these will do fine.