This looks like a good knife, does any one know if it works well with a fire steel?
Welcome to the forum!
You mean a ferrocerium rod, I'm sure. There's some mythology about stainless not being any use for striking sparks, but all that really matters for striking sparks from a ferro rod is that you have a sharp (squareish) corner on the striker. It helps if the striker is made of a hard material so that the sharp corner doesn't wear quickly, but virtually any decent knife blade material will be plenty hard enough for that.
Unfortunately the bit of the knife that most people will use to strike sparks from a ferro rod will also be the bit of the spine where you put your thumb when using the knife for 'push' cuts. Sharp corners on the spine just there tend to dig into your thumb a bit and so it can be uncomfortable to use. The hot sparks from a ferro rod can also pit a steel blade.
I prefer to use a separate striker made for the purpose, so that my knife is more comfortable to use. I'm also not risking damage to the blade from the hot sparks. An excellent striker is very light and very cheap (check out the Group Buy I did a while back) so it really isn't worth compromising the knife.
Xunil (aka Barry), the owner of the example knife which prompted this article, very generously started a 'passaround' with it. I had hoped to put it through its paces myself but unfortunately there were some issues between Barry and others on the site, he cut the passaround short before the knife reached me and disappeared from the forum. So I've never seen the knife and can't comment on its use with a ferro rod, but as John said it's easy to flatten an area of the spine on most knives if you really want to.