The board is nicely made at first glance, but not so much upon closer inspection.I noticed that all the screws holding the transistors to the heatsinks are not in all the way... If I hadn't taken it apart to make sure everything was good, this would have caused the board to fail in minutes.Also, the screws in question are almost impossible to tighten because you can't get a screw driver on them straight.. so you might find you have to replace them with hex head screws.Besides this issue, I think it's a great product for the money! But I can't give it a good rating due to the very poor assembly... They basically set it up to fail.