Unlike many people who will tell you that reactors are bad, I have actually owned them. Rather, I have broken several of them. They are the best idea ever in bindings, but the design couldn't be executed.
Granted, I am bigger than you (6'1" 170), but I would be wary. Though I still ride them occasionally because they are what I have on my prophet 130s, I don't trust them anymore, and would never use them in a situation where I have dangerous exposure (which is frequent when I am riding big mountain). Now when I am doing exposed lines, I rock prophet 100s with look bindings.
I originally bought reactors because I fly with skis and could put four pairs of skis in a single ski bag with my bindings in my suitcase. In that respect, they are a great idea.
The reactors also weigh about twice as much as most other bindings, which may not sound like much, but you can really feel that when hiking at 12,000 ft.