I made a 1 bushel bag with the steamer.
It presses fine, an iron presses better. Oddly it did not totally remove the fold lines from the duck cloth that has been sitting around forever. I think an iron would've.
It left the duck cloth quite wet. Maybe it wouldn't have been so bad if I had a towel under it (my ironing board has a heat proof cover that is sealed pretty good. probably asbestos, it's as old as my iron). It got really wet when I was using my metal square to press on.
I think the steamer did better than an iron would've on the straps where I rolled up about 4 layers of cloth and pressed them flat.
I think mine also came with a pleating attachment although I have no idea where it is.
Petroleum based knitter, removing that nasty oil from the ground one skein at a time.