I bought a Marble's Woodcraft fixed blade just a few weeks ago and I'm quite pleased with it. The convex grind is nicely done and the steel (50100) is quite good.
I'm not too fond of the sheath, the leather is quite thin and the plastic liner is a rather cheap-feeling touch. I'm going to make a new one out of better leather.
I paid $80 for it, I'll definitely buy another one of their fixed blades.