I really wanted to get an invisible fence for Murphy. We had one for Katie and it worked great...except for one problem (but it may have just been her "way of thinking") She was a great dog and listened well. With the invisible fence, she knew her boundaries and knew not to cross the line to argue with the neighbor's dog, chase an animal, etc. The only problem we had with it was, whenever we'd go to take her for a walk, she wouldn't want to go down the driveway (since the fence stopped a little before the end of the driveway). In order to get her to go down the driveway for a walk, we'd have to drive her in the car up the street a little and start the walk. This was no big deal to us, but that's why we're trying not to get one for Murphy. I'm not (and wasn't) mad at her for this. I'm happy she wanted to follow her boundaries! It's just I felt bad that she didn't trust going down the driveway without getting a shock LOL But I really do like the invisible fence. It's a great way to let the dog run around in a "supervised" area without the traditional fence look