Overall, others give this:
this dry wall saw is very sharp and cuts through dry wall extremely well. it is an essential tool for anyone that will be cutting into dry wall for any reason. very accurate as long as you have a steady hand.
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.