I use Teleporting Battle-Stations a LOT.
Build your cap in I, II and III and you can respond to threats all over your territory within 10 seconds.
They are fantastic for mop up, too.
They are even good at offense, if you manage them well. You can hop in, fire a huge volley at frigates, and hop out before the enemies shots land on you.
I'll also use them to draw off defending forces.