I rode Rossi Axial 120s this past season (exact same binding), and I thought they were great. They never pre-released, and held up good, even though I was pretty hard on my skis and bindings. The only problem I had was when I knuckled a 40ft. jump, one of my breaks busted, but that was to be expected, I cased it really hard. All in all, I think they're a great park binding for lighter skiers.
What skis are you mounting them on, and what kind of skiing will you be doing?