Right now I own three Woo knives (Exec, Ti, and Regular cordwrapped). Personally I prefer to carry my Celt. In short, I like the little fellahs a lot. I am not a fan of chisel ground blades, but we are talking about knives for using and abusing, and for that it doesn't make much of a difference.
This summer the Ti Woo will probably be a constant companion (as soon as I get it back from my buddy) and the Executive Woo has earned a billet attached to my camelback shoulder strap.
Get one!
KM