Friday a week ago, I somehow snapped the antenna off my Dogtra Edge RT transmitter. Rather than send it to Dogtra for repair (Ohio to California). I decided to send it to Collar Clinic in Michigan. I've had good experiences with Collar Clinic before. I had other ecollars to use in the meantime, but prefer my Edge RT. I dropped it off at the post office Saturday morning with an estimated delivery to Collar Clinic of last Tuesday. Last Thursday, I received an email from Collar Clinic that it was due to be delivered to me yesterday. Sure enough, it arrived midday yesterday, good as new. Great service!!