What I like about the Vue renderer is its auto resume feature.

EDIT: Can be manually paused and resumed too... seems to work.

There's also the option to tell the external batch renderer (equivalent to Queue Manager kind of, I guess) to save a snapshot image of what it has rendered so far, every however many minutes or hours you wish...

...good for checking nothing has gone pear shaped!

Both these features would definitely be nice-to-haves in Poser...