It does what it says with stability.
It's not free, but it worth the money.
Really good interface, but poor quality. The firewall doesn't work properly, the antivirus doesn't update, junk and registry scanners miss many errors or garbage files and so on. It used to be great in early versions, around 1999. There is so many free programs out there now that perform much better than this one. It's a real shame.
Good price, unobtrusive.