It's very handy, specially when you only have to restore a file or a specific directory.
This is preferable than netbackup for it's easiness.
But of course a ufsdump is needed for you to make use of this tool.
Here are the highlights of how to use it. Let say we want to restore /etc
Specify next volume #: 1 comment: in most cases is volume 1
set owner/mode for '.'? [yn] n comment: NO when restoring in directory other then one from which files were dumped
comment: YES if restoring in same directory from were dump was performed.
ufsrestore > quit