the new ones ui is pretty user friendly if im honest till you press the advanced setup button then theres all sorts of settings
but its a lot easier on noobs in everyday use because the firewall dosen't prompt you for a response every 5 seconds about which programs to block etc which i found with a few other suites such as mcafee , norton and comodo personal firewall
yea the photoshop windows were just confusing me
as for my kaspersky security, it seems to only use like 4mb ram, and works ok, so for free (legally) im quite happy