I was a bit skeptical at first about investing a substantially large amount of money into an anti virus (struggling college student,) so I did some research and called my local Geek Squad. I ended up getting a good amount of referrals to Kaspersky. I finally broke down and purchased it, and it has turned out to be one of the best technical and financial decisions I've made yet! The protection is awesome, but not too annoying. The protection makes me feel really safe. I feel like I could download a Trojan right now and I'd be completely safe, because I have Kaspersky (I know, a bit drastic!) Kaspersky runs quietly in the background. My computer has not slowed down at all since installing it. I haven't had to call technical support at all, so I don't know how helpful they are, but I can imagine with such a great product, the wont be far from awesome! I hope this helps!