I have 3 of them on cars, they are slow to get things out but I can't say that I ever felt that I was being Ripped off. In fact, 2 years one sat on my shelf for a project only to find that the pulley offset was wrong, he sent me a new one no problem. He is SLOW AS MOLASSES for some things but has done a fine job for me. The Racemates are for RACE cars and have limited current capacity and should not be expected for much more then that. I have a 3rd one on my GT40 that is a 60amp unit so if it does half of that It's more then enough. The other issue is that most of these are severely under driven and that must be taken into account for current consumption, don't expect to run A/C, Fans, Fuel, Rear Window defoggers, and have power to spare. Again I have had good but slow results from him, and never felt like I was getting ripped off, just not fast service.
Sandy