The Cabela's haulers are ok as long a the ground is solid, but in reality, nothin works well when the ground is soft and muddy.
My hauler has hauled way more goose decoys than big game.
Biggest issue is decoy bags rubbing on the wheels if the load shifts a little. We try to secure them in place with tie downs and/or bungy cords, but how stable it stays depends on the terrain. Thought about building some bolt on side boards for the hauler, but have not gotten to that project yet.
While they will hold a fair amount of weight, they can get top heavy pretty easy.