Karen is very knowlegable about this field. She is a get down to work gal w/o a lot of chatter. I took lessons at a ""popular"" north shore establishment before and the woman talked for 30 minutes and we actually got to do hands-on work for 15. Also THAT woman only liked Golden Retrievers. Karen has you come for 6 weeks one-on-one and then unlimited group lessons until the dog (and owner) ""gets it"". I have tried 4 different tainers with our dogs and I like this the best.