I purchased a Brakesmart from Dr. Performance back in December. I found their phone response time and shipping practices to be superior. They shipped the Brakesmart when they said they would and it arrived when they stated it would. I did have a proplem in that the adapter block was not in the packaging as it should have been. I called Dr. Performance the next day and they next day aired one to me. I am a mechanic and find the product to be of high quality and it works exactly as it should. I find the trailer brake response with the Brakesmart to be very linear and smooth. I had upgraded from a Prodigy and had found that with the Prodigy I could feel notchness in brake response when towing heavy. When towing a smaller lighter trailer this was not evident. I very much like the fact that the Brakesmart is fully adjustable and when I was doing my research found that none of the direct competition where the controller actually used a sensor tied into the brake system sensing your pedal input offered the same. I conceed that the Brakesmart is pricey, however it does do an excellent job. I can't put a price on the safety of my family or the safety of others on the road afforded by superior electric brake operation. Our pickups are very small vehicles when it comes to towing vehicles of the weight and mass of our larger fifth wheels and tow behind trailers. I am of the opinion that any added measure of safety when towing large and heavy is of great value. I highly recommend the Brakesmart and Dr. Performance, I have found their product and service to be superior. I also like the fact that their product is American made.