I like it because I can lock it. I also see that they have free shipping right now. I got mine all most two years ago and paid $425.00 plus tax back then so the price would be about the same as today.
When I was a kid the Foreman of the ranch that I worked on built one. It was not real purdy but it worked. He just unhitched the trailer and drove off without lowering the stock tailgate and it modified the stock gate into a fifth wheel gate.