This antivirus is very useful for using it for ur pc when u wanna be sure of getting rid of all the viruses sitting into ur pc.
This antivirus is very much good but it also takes time to scan the whole pc for computers but that too is good when it can rid u of all those viruses.
U can have a problem using this antivirus if ur internet connection is slow coz this antivirus has updates known as virus definitions which are updated every fortnight and which u gotta do regularly otherwise there can be a problem.