I had invisalign treatment with Dr. Perle. It was extremely successful and it took exactly as long as planned. They were very good about scheduling my appointments around my work schedule, very flexible with late appointments available. The aligners arrived when they were supposed to and there were no hidden costs. I really don't like going to the dentists in general but I would say Dr. Perle was one of the best I've been to and I will continue to go to him.