I have a few large and small Svords(in both plastic and wood handle), but the Titanium keychain one is definitely my least favorite one.
Unlike it's larger siblings, the blade don't really 'wedge' into the handle(like a real friction folder), and I have to either tighten the pivot screw really tight(so it won't accidentally open) or carry it with a sheath. Also, the ultra thin handle is totally not user friendly, a pretty far cry from the original design.
Personally, I would much rather to stick with a small Svord or a small SAK, YMMV.