I bought one a few weeks ago when there was a feeding frenzy on them when one of the major vendors (can't remember which) put them on a deep discount.
Mine has received no use, but thats no reflection on the knife. It appears well made and is sturdy. Reminds me (no surprise) of my Strider SNG, though without the titanium, G10 and tiger stripes. Also the Buck has a liner lock (I'm no real fan of any liner lock), but lockup appears very strong and I would have no fear of it collapsing on my fingers. The plastic scales are sturdy, but have a cheap feel to them (just my subjective opinion) and I don't really care for the rivets.
But from my perspective of never having used the knife, it nevertheless feels well built and sturdy, and worth the price of admission if you are into it.
As for the Spyderco comparison, I own probably a dozen of them and am a fan. Again - not having used/abused the Buck - I would guess that their build quality is more or less comparable, though I would give the edge to the Spyderco family in refinement, availability, wide variety of flavors from which to choose, etc.
:thumbup: