A sinthetyc explanation for switching to pc-cillin:
I got pc-cillin for free, as the customer of an online bank, and pc-cillin is suggested by the bank. Pc-cillin has also a firewall and i think i need a good firewall for security reasons.
The pc-cillin firewall on my pc has some performance issue when i do a search with google, so i'm not so sure i will keep it, may be i'll switch again to avast, but I need a very good firewall protecting against phishing and things like that, and also it must not slow down my browser.