What the hell, put it in three threads!
I’m conflicted about the flat-packability and the aluminum struts. Flat pack is nice if you have a travel bike. The separate struts are nice so you can customize your own strut length if you don’t have the 140mm bosses.
But if I’m paying $200ish for a rack, I want the entire thing brazed from chromoly, for ultimate strength and lack of wiggle.