The Stalwart is everything I know about round pavilions. Narrow panels (~17″), integral appliquéd decoration, leather reinforcement patches, curved walls and roof. It is the strongest, most beautiful, and most authentic tent I can make.
The Essential is lighter and simpler. Wider panels (~25″) mean fewer spokes and stakes and thus less weight. It is still, in every way, a premium tent. It still includes oil-finished ash poles, hemp ropes, hand-forged square iron stakes, and top quality canvas.