Excellent product in all respects. Made from good quality steel and instructions are included, just make sure you install the dog bone as written. Other than that the only downside is that the sound is quite loud, it's just that the sound isn't exactly what I wanted, it sounded like I ran out of PS fluid so back to the circuit for me. In terms of accuracy it was only 2 degrees of slop, if that's the case then it's well done.