Sit means sit has changed our lives and we are only 2/3 days in! Aspen is our 1 year old German Shepard/Lab mix. Before SMS she was a little trouble maker and now we have a well-behaved sweetheart. At first I was nervous about the e-collar because she can be a little shy and timid with new things at first but she adjusted to it quickly. All the trainers she’s worked with have been wonderful. She’s becoming more and more confident everyday! I can’t wait for summer to bring her with us everywhere possible 🙂