Easy to install and it just works. This blog entry tells the story.
Read it here
I had an extra laptop harddrive sitting around that Windows XP could not format. It would slowly arrive at 100% done, and then say it encountered an error. A different windows pc with Vista couldnt do anything with it in disk management. So I put it in my laptop, ran MEPIS from CD and booted off of CD. Then ran mkfs.ext3 and that fixed the drive. Nice work, linux!