I tried the following Zeagle products: Zena, the Stiletto, and the Brigade.
The Zena fit well, but so did the Stiletto and the Brigade. (I'm 5'9" and 160 lbs.) I think that tinier women may benefit more from the women's bcs, but I'm not certain.
For me, the ability to size the straps separately from the waist on the unisex bcs was sufficiently flexible -- I didn't really need the extra hip strap to make things comfortable.
Why didn't I choose the women's bc?: I decided since all things fit-wise were pretty much a toss up, I would go with the unisex bc. That way, when/if I decide to get rid of it I have more potential buyers/benefactors (like my little brother).
Added benefits of the bc I chose?: There were more d-rings and utility pockets in the unisex versions. Again, fit was a toss-up, so I went with utility.
Why the brigade and not the stiletto?: No real reason. I got an extra pocket and I could distinguish my brigade from my husband's stiletto.
So, I have nothing bad to say about the Zena...I just offer that you could consider the unisex and if the fit works you might choose one for these same reasons.