Great application! It was originally given to me by the tech coordinator at my high school several years ago, and I've been using it since on all of my Macs. Easy to use, and easy to show others how to use. I figured out how to do everything just by playing around with it a bit. I showed my mother how to use it, and even she gets how everything works.

It usually takes a little while for the verification processes to be completed, but I've found that they are necessary. I had a problem with my new laptop that I didn't even know was there until I decided to run OnyX on it. After OnyX told me there was a problem, I was able to call Apple and get the problem taken care of quickly, before I lost any information.

Overall, a very useful application :)