I've had one of each of the three Ameristep models. I used all of them 'til they completely rotted apart. The hub style model was the easiest to set up and take down; and most comfortable of the three. . I saw the doghouse at Walmart for $49.99 about a month ago.
I think like all things with the Primos name, their's are over priced.
NRA LM, NAHC LM, Buckmasters LM, The Second Amendment Foundation, GOA, NAGR, Palmetto Gun Rights, QDMA, DU, NWTF, ASAdisabled sportsmens' alliance, EDH, and Proud SC redneck REBEL for life.