I have not used one in any of my teams yet I think it may work out if I use Whismur (and it's evolutions). I'm trying to not have every team member to bred and transferred over... I know that if I make them too high leveled they won't obey after a while (at least the traded ones).
For now I seen the photos of the new episode - looks interesting, but didn't see any Pokemon I like so I may rate it in between (around 5 or so).