You are right. The thing is, you have to start somewhere. There are many decent products for structure. So we are starting with the other extreme. Give us some time.
True, and I commend you for putting it out there and iterating.
If there was one suggestion I might have on where to go next, it would be improving fine grained control of item placement (as alluded to in my original comment). No one has done this well, and it is one of the things that makes coders say "screw it, I'll just do it with CSS", and non coders say "screw it, I'll hire a designer/programmer.