Oscar, the initial design that was released 2 years ago did rattle a bit and feel somewhat unstable. I was still able to ride them fine. Since then the design has been drastically changed. I have used the new one, and it is the most solid binding I've ever been on. People that claim that it's unstable or heavy have obviously not even seen the new one. As for warranty, it comes with a 1 year warranty, 2 year if you buy line skis with it.
I ski switch.