I bought one in December. I have used it in the woods to process some fatwood and some minor wood carving and batoning. I have not skinned anything or filleted any fish with it, but I think the full flat grind and blade shape would work well for that, although the blade is quite thick. For frame of reference, I have previously used fixed blades primarily for field use in the Army as an infantryman or special staff officer assigned to airborne infantry. I used a knife mainly for cutting weeds and sticks clearing fields of fire, cutting roots while digging fighting positions, opening crates, and of course, opening MRE's. Most of the time I used a Cold Steel SRK or the Pilot's Survival Knife (mine was made by Camillus, but same spec as Ontario 499).
Here's what I like about the TAK:
1. It came sharp with almost perfect grinds. I've used a fine stone and a strop to refine the edge a little, but it didn't really need that.
2. It seems like it would be impossible to break.
3. Blade length is a very useable real-world length.
4. Scales are real canvas Micarta.
Here's what i don't like:
1. Knife is incredibly handle heavy. The full tang means it balances at almost the middle of the handle. Did no one at the factory cut anything with this knife for any extended period of time? The tang should have been skeletonized at the factory to help the weight distribution. I know this knife was designed by some guys who are revered as jungle survivalists/ knife designers, but did they really have to throw out a couple of thousand years of common thought as to how a knife should balance when they designed the TAK?
2. Micarta scales are blocky and slightly over-sized for tang.
3. Sheath insert doesn't exactly fit the blade and so it rattles. However, the MOLLE strap is nicely integrated. Black color is so 1980's tactical. Tan or Coyote brown would be much better for military use and would match the scales better.
4. The choil is a waste of blade space. Again, I know that's how it was designed by some knife experts so one can choke up to do fine work, but I would would much prefer it if the blade edge extended almost to the handle for more leverage. I'm not too fond of putting my fingers near the edge of the knife, but I know some do teach this.
5. Coating is starting to come off spine after a couple of whacks with a pine baton. I figured this would happen eventually with use, so not a big problem.
I really wanted to like this knife as-is. I have used a lot of Ontario products in the Army (bayonets and seat cutters, I believe) and I purchased one of their military machetes, which I really like. The balance on this knife and the handle just wore me out trying to carve with it, though. Did I sell it? Of course not. I went to Lowe's and bought a carbide 5/16 drill bit (should have bought a 1/2 in.) and chucked it into the drill press. So far I have drilled three holes in the butt part of the handle and two in the front. With a bunch of filing and grinding with a mini-tool, I have been able to connect the three rear holes. This hasn't helped much at all, but it has a little and I may keep drilling/filing until I can get the weight distribution right. Again, the factory should have looked at this and skeletonized the tang somewhat. See an Enzo blade or a Becker BK-16 tang if you don't understand. I know there are folks that demand a "full" tang, but they must not actually carry or cut much with their knives. I have also hand sanded the lower edge of the scales to make them fit better and to round the part near the fingers. If you do this, take care not to bevel the inside edge that goes against the tang, or else it will make the gap between scale and blade bigger. I have also bought a cheap leather pouch type sheath from a knifemaker supply and wet fit it to the knife and dyed it. I like it much better than the nylon sheath, but that's a personal preference.
I will keep and use the TAK-1, but I think it would be a much better knife if the factory skeletonized the tang to even out the balance between blade and handle and did away with the large choil.