I've never handled the ODA, but since the OSS is a very similar model, I think I'll chime in.
If you like rubber handles, you are probably going to like the texture, it provides a very secure grip. The blade will dull readily, but my OSS arrived very sharp with a needle-like tip.
The sheath (which seems to be the same as the OSS's) is actually not bad, you can even carry it IWB if you experiment a little with it. You gotta attach the Cordura strap to the other side of the sheath (it's reversible) and bend the Cordura strap.