Wasn't sure how sturdy a bolt-together carrier would feel, but the steel frame didn't budge with a loaded cooler and firewood on the drive up. Assembly took me about half an hour with basic tools, and it fits my hitch without any wobble.
Bolted this to my hitch in about twenty minutes and it swallowed a full-size chest freezer with room to spare. The steel frame barely flexed even loaded near the 500 lb limit, and I like that it fits any standard hitch without extra adapters.