My wife (5'7", 120lbs) uses the LadyHawk. Works great, very comfortable, everything is easy to operate, and ScubaPro has absolutely the best tank strap system (good enough that I replaced the tank strap on my BC with a ScubaPro). The only thing I am not crazy about is that the waist belt is a single pull. As a result, the buckle ends up to one side, and when reaching for it to removethe BC, she has, once, unbuckled a weight pouch instead. I suspect that the waist belt can be adjusted to put the buckle in a more centered position, but I have not yet done this. I prefer the double pull belt on my SeaQuest Balance.