Overall, others give this:
I just got this and already put it to good use for reaching those hard to reach places in my backyard to cut off the poison ivy roots and other branches. It's very sharp and very light so the weight of it certainly won't get you tired.
This is a great saw to use in demo work. The teeth get dull only after quite a bit of use. The less teeth per inch give it versatility and quick use to saw through materials. The ability to change blades also adds to its value and versatility.