I had an Ameristep Grizzly and ended up hocking it on Ebay. [:-]
Simply put: Get the Summit - you won't be sorry! The Goliath is a big man's stand (350# rating) and made of lightweight aircraft aluminum. The padded bar does NOT get in the way. Raise the seat straps so you sit higher up for bowhunting. Lower the straps down for gun hunting. Simple as that.
Other things to consider: Summits are made in Decatur, AL. Ameristep's are heavy gauge steel and are made in China.
Butch A.