I bought one and returned it. Nothing inherently wrong with it, but I wanted something a bit more stout that I could sit on with NRS flip seat (which if you buy on black Friday is really reasonable) and that would clearly last me a lifetime. Hardware on Frontier Play is junk, but you'll see other's comments on that. Weld's seemed fine. I think someone said it best earlier. Nothing wrong with their boxes, but you get what you pay for.
I got mine from Mad Cow Metalworks. Definitely costs more, but the box could probably withstand a hammer taken to the lid. You decide if that matters or not.