The Hitmen come every year to spray my oak trees. It's kind of a continuous program, so I do not have too much interaction with them. I don't remember how I got started with them, to tell you the truth, as it has been many years, but they consistently send me a card to remind me that it's time to spray the trees, and I consistently respond and say yes. That's the way it's been working for me, and the service is fine.