I just signed Yogi (13 wks) up for puppy school through "Unleashed by PetCo"... Any reviews on the big store classes? I already paid for them. :/ The trainer called me to tell me that so far I'm the only one signed up and she's looking forward to meeting Yogi. She introduced herself and told me she's been a dog trainer for 17 years but only worked for PetCo for two... Opinions good and bad welcome.