The mailman just brought mine today. My first impression opening the package was it felt heavy. I mounted it to an arca Swiss plate and setup my razor 12x50’s and I have to say it is solid and super easy to attach bino’s to. My only complaints are the weight (I think it’s made of steel and not aluminum) and I had to locktite the threads on the mounting screw in the arca plate to keep it from coming loose while panning back and forth.