Dr. Kohl was recommended by some neighbors and my dentist. I needed to have my teeth straightened and was hesitant to have braces. Dr Kohl gave me the option of invisalign. I loved them. The staff was very friendly and my teeth, well I have never smile so much. My treatment was not complete until Dr Kohl was happy with my results (even though I thought they were fine 3 months earlier, but thats why he's the doc). The cost compared to the other orthos I checked out was very inexpensive. No hidden cost. Everything was included in the price he gave me. I would definitely recommend anyone who needs Invisalign or braces to check hime out. You'll love it. :)