I'm back to Webroot on my main PC (laptop still runs F-Secure).
One way to strengthen protection is to tune heuristics to absolute max, as seen in picture.
I have tried cleaning my friend's computer many times doesn't believe in viruses and webroot doesn't seem to protect him or find any of the malicous files Zemana and Malwarebytes catches. Avast isn't that good but it has worked well enough for me. With a balanced config like mine you should be fine.