I have a Spartan Harsey Folder, Hunter, and Difensa. I have had and used most of their knives at some point and settled on these as the perfect combo for anything I need in a knife. They are extremely durable and tough as hell. I have never held anything back using them and have never had any kind of issue.
Their steel is amazing. I don't know a lot about metallurgy, but they so some cryo heat treat magic that seems to really work well with their S35VN. It seems to stay sharp forever and takes an edge well. It isn't as easy to sharpen as some tool steels like a Randall or something, but it is especially easy given how tough it is. Their coatings are amazing. I have used them hard and thought I had scraped up the finish, but after a quick clean they look brand new again.
The micarta handles on the Spartan Harsey collaborations are amazing. They are based on some of Bill's hand made stuff and it is extremely comfortable in any grip I find useful. I've messed about with the Hunter and Difensa for hours at a time practicing bushcraft things with my sons and they stay comfortable, grippy, and pretty much just awesome even after long or wet use.
The Folder is hands down the coolest knife I have ever owned. It is smoother than any CRK I have ever had (I still have a large Sebenza and it is a cool knife but it stays in the box and I carry the SHF). It has an extremely well designed grip that fits my hand like a glove just about as well as the fixed blades do. It is a little big for some things but is so well designed it feels and carries smaller than it is. It works OK for me in all but the thinnest dress pants, and when I dress up that much I go for a Mnandi in my shirt pocket anyway.
Basically I feel like they are a really awesome knifes make by a really awesome U.S. company that is owned and operated by really great folks in collaboration with a really awesome designer. I recommend them highly.
I would post some pictures, but I forgot know how to do that on this site. Email me at
nesplin@gmail.com if you'd like to see any pics of any particular part of any of those three or have other questions. And no, I don't work for them or get free stuff, just in case my comments come across like that.