In my view - Not a waste of time when used with the other prescription, shampoo, conditioner and nutritional supplements. So that we all know - The Bosley Laser Comb is made by the same company that makes the Hairmax Lux 12 - it just has Bosley's name on it. I did the research before I bought mine 2 years ago. Rather than the Bosley version, I bought the Hairmax model for $130 USD less.
For background, I've had two Transplants with 5600 grafts. Currently, I use Finisteride, Bosley Shampoo, Conditioner and Follicle Energizer (Amazon.com), Nioxin Thickening Gel, Biotin Supplement and the LaserComb.
Hopefully, this will help you in your search for answers.