Speaking of Coffin Jack - look what the Postman just dropped off!
Overall, I am immensely pleased with it, it's a good 'un. There are a couple of things here and there that I feel that I could really nitpick on but they are typically things that wouldn't bother me in a different knife so why would they bother me with this one? The things that matter are sound - excellent action with no wobble, thin grinds, beautiful covers, and an overall superb attention to detail.
I love the heft and feel of the knife. This fills that niche that I have been seeking for quite awhile now (a medium sized coke bottle, or "stabber" jack) and it is everything that I hoped it would be in terms of comfort, ease of carry, etc.
Is it worth the cost? Great question before I received it, I think, and now that I have it in hand, I no longer see dollar signs - I see a useful, well built tool that will likely last me a lifetime. So yes, if you can make the investment and are willing to actually use the knife for its intended purpose, I'd say it's more than worth it (with the caveat that you receive one without serious flaws).
The WT should arrive tomorrow, I'm looking forward to experiencing that one as well (with some trepidation, of course).