Reviews of Dunbarton Radio & TV in Ajax

I had some amplifier boards I had built, with great care, and at some expense. But lacking the necessary test equipment to test them, I entrusted them to Dunbarton ,becase they had been around a long time, and would have the necessary tools and expertise. After a couple of weeks, I inquired as to how they were doing. They said they would check, because they had "sent them out". ????
Over a week later, they were ready,candy I picked them up, told all was well, and gave them $40.00 cash (no receipt). To make a long story short, I brought them home, hooked them up, and within a minute, one board was starting to burn! Severely damaged. Whomever checked them out obviously didn't understand setting the quiescent current. So much for "trusting the professionals".