The speed with which it does its job… The speed with which it does its job and everything it covers. It keeps me up and running. I use it on all my computers and I bought the never expires license, however my only complaint is when it comes to upgrades, It feels like I am the proverbial step child as I never get an upgrade notice so when ever I get their new upgrades for their regular programs that they sell (which I get all the time) then I go in to see if there has been any upgrades for my life time programs, usually when they are pushing their Ultimate version. Why don't you offer those of us that spent the money to get lifetime, get the Ultimate upgrade too?? Something to think about.

Virus Protection Did not Stop a Virus From Entering Computer Virus protection did not stop a virus. I called customer services and the agent was very rude and unhelpful. She even interrupted me while I kindly spoke with her. They do not deserve your hard earned money. Once my subscription ends, I definitely will not renew.

I've used System Mechanic for a long… I've used System Mechanic for a long time and will continue to use it in the future

best software so far I am using system… best software so far I am using system mechanic from very long time its keep system performance checked and fix all issues.

System Mechanic Ultimate Defense is probably one of the best protection software for the price and so many features, Good software and seems to be about as good as I would want with just the ByePass being secure. System Mechanic Ultimate Defense is always improving, which I am happy with.