It's very light and it's the only antivirus/cleaner with a 99.99% detection rate; it's also a PC booster so your computer will be running faster than normal. Install it, hit run and problem solved. It shouldn't take you more than 5 minutes.
it's not about knowing if you need one done. it is stuff that need to be done on a regular base to keep the car running right.
Have you tuned it up in the last 30k miles? If not you probably should
Over 100K miles? Do it.
-Ken
