We stopped using it because our dog and kids were still getting ticks on them because of being in the woods. Treatment works in your yard, but if you are spending your time outdoors in areas that aren't treated it isn't going to help there. We live in a high tick area, with deer gathering in our yard all the time so we are used to taking all the precautions, thought treating our yard would help but it didn't make much of a difference.
What I liked was that it was a natural way to repel ticks. I hate having to spray and use chemicals on our bodies and the dog.
I don't doubt that it works as advertised, but for some situations, like ours, it may be a waste of money.