Tony did everything exactly as promised -- and better. He called before he said he would; he arrived sooner and earlier than promised; he's friendly, polite, and efficient. He said that there are many ways to do anything, and that he always finds the best way. I agree. Tony works quietly, precisely, and effectively. He read the instruction manual and figured out how to solve installation challenges that were not mentioned in the documentation. He's obviously very experienced at all sorts of very useful work, and he doesn't take long to master the situation. The door works perfectly, and he affirmed that before leaving. He cleaned up the work area so that you couldn't tell anyone had been there with a drill and other tools. Our 3 cats are happy with the door. One mastered it right away and is showing the other two how to use it. The same night the door was installed, a wily raccoon appeared at nightfall and tried like crazy to push or pull the door open. Haha, Raccoon, we humans have finally outsmarted you! No microchip, no service!!!