First off, I think Leatherman multitools looks really cool. It's fun to just hold and play with. But more than that, it's such a good design that you can customize it to have almost any tool you'd need out in the field, or camping. It's compact, really tough to break, and have saved me from going back n fourth to my shop to get certain tools. Plus this model has a ruler.
I've had a swiss army knife as well, but Leatherman has it one-upd thanks to the pliers function. I've used this thing for loosening bolts, cutting small branches, sharpening sticks, tightening screws, filing jagged bolt edges, cutting string or packages, etc.
I don't know if it's possible to improve upon it personally.