I liked this option for my...riskier... processes. Well, until my old laptop finally took a pooper. Now its Windows Defender/MSE and then right now I'm using Malware Bytes. Also CClean to purge the junk/cookies/etc.
I use the ESET online scanner. Kick it on for a few minutes once every month or two, and not clog up my computer with parasitic tasks. Whatever comes with Win OS is enough to keep me "safe"
I use Avast, use to use AVG and got viruses, same with MSE, didn't find them, Avast found them and removed them. MSE seldom updates their virus database.