I am new to leather work. I've attempted a holster a few times, and that's about the end of my experience.
The belts I want to make are for dress clothing, fairly thick, and hopefully full grain.
The Primary purpose for the machine is to add stitching near the outside of the belt, along the entire length - for aesthetics.
I may also use it to attach the front side and back side of formed leather together, for a holster. But probably not, I prefer working with Kydex.