I'm quite happy with it... I've been using on 150 servers &
workstation for roughly five years now with no complaints.
The occasional false positive is the only thing I can think of.
FSAVs Trojan detection is pretty (very) good... As an aside you really
need to stop thinking of anti-virus as "protection" it's not... It is
a risk mitigation tool that's all. If you're expecting FSAV to protect
you you're headed for a fall.
Anti-virus software is by its very nature reactionary and can only
"protect" against what it already knows. Relying on anti-virus
software to protect you from viruses is a little like hiring Willie
Sutton to guard a bank. . . it looks good on the surface but in
reality all it does is offer a false sense of security.
That's not to say you shouldn't use anti-virus software. Anti-virus
software should be a part of your overall defense strategy, but it
should not be a replacement for the zealous practice of Safe Hex.
You really should take a few minutes to read the following pages:
<
http://www.claymania.com/prevent.html> &
FSAV Client Security 5.52 sr1 here.