Graveslu, you may wish you hadn't asked that..;-)
To be fair I have used and administered Netbackup from V5.1 upwards and have had a few problems.
I am a unix admin so this is very much a second part to my role.
Upgrading 5.1 to 6.0 was relatively painless, apart from a simple issue with duplicate tape id's (which strangely enough was resolved by right clicking and deleting from the gui rather than trying to delete from the command line - which is unheard of for a unix guy - right clicking is for windows people).
We then introduced an extra master server and 5 media servers into the mix to support the decommisioning of Backup Exec, primarily to host Windows backups. Again, no major hiccups, I even started to like Netbackup at this point....and then we went to v 6.0 MP6.
Since then I have had major c4 tape library failures to the master server after a simple server patching exercise.
My bpduplication script no longer works and bombs out with error code 50 if I want to create more than 1 copy.
My second (original environment on Sol 9 v6.0 MP6) no longer shows me a RedHat client from the pull down when adding clients to policies.
On top of this Veritas support is provided by SUN, who can be helpful, and can be dreadful...
As I say, I did enjoy Netbackup when I could write a few scripts to get some relevant data to Mgmt e.t.c, but these days it is such a big part of my job ( one that none of my colleagues want to touch I should add ) that I find all the little Veritas anomalies tiring...
Anyway, thanks for the opportunity to have a rant, this has felt like therapy....
Now, where is my hammer. ;-)