Very well built. The way it was packed it should have been all busted up. One layer small bubbles squeezed in box smaller than unit. But it survived except for small ding in aluminum trim. I was able to straighten it somewhat ok. I sent seller message asking why when I asked him to pack with lots of bubbles and thick box he packed it like crap and trim got ding plus Volume pot is having issues. The guy right away said sorry and if it was ok with me he is sending me another unit. I said ok that's cool, so I have another 5700 on way
Bad Boy Bill