This is one of the best antivirus I have ever used. I am using this for more than 5 years.
Now I am going to describe about pros and cons.
Pros:
Function of this antivirus is very good, it provides us internet protection also.
It is also very easy to use. Its menu screen is designed nicely.
Installing is very easy to do. Just click and finish. After installation you just need to activate it putting the valid license key.
It has many functions like internet protection, usb lock, firewall services and many more. Main feature is it never slows down your pc and it scans your whole system very fast.
Service is very good, you can purchase it online on Flipkart, Amazon etc. just only at Rs.300-Rs.500(1PC-1YEAR).
Cons:
I have not faced any cons.
Lastly saying best antivirus. Try it.