I have a 12 year old Toy Manchester Terrier, Drew. I didn’t start her in scent detection until she was 10 and my only regret is that we didn’t start sooner! Drew is a bit of a slow learner but Cindy has been so patient with us and has done a great job teaching me how to work with Drew so she understands what we’re trying to do. We both love it and have so much fun doing it together! It’s super mentally stimulating which is just what I wanted for my senior dog. It’s great to see the progress from when we first started to where we are now. Highly recommend Cindy’s scent training!