I have only used it on one computer so far, but it took a laptop I would not even use anymore because of slow boot time and constant errors, to a laptop I use again. It removed 5 viruses that my Avast software could not even find. So far, so good. The boot time is 3 minutes, the old time was 10 to 15 minutes. And zero errors after 10 hours of use. Before FixMeStick, with 10 hours of use it would get at least 2 an hour.
Bottom Line: Yes, I would recommend this to a friend