I bought this about 4-6 months ago. It did take a little time to configure but that was only because I switched up the way things were organized on the rod. But then that is one of the positive notes as well - you do get to organize which ever way you like. I put the wash cloth rod on top and I hang my back scrubber and wash cloth on it. Then I put the 2 put big baskets and finished with the soap basket on the bottom. Afterall, who wants soap drippings all over the rest of their items in the other baskets. As far as rusting, I have not noticed a spec of it yet. However, it does not get much water on it since I put it in the front of the tub instead of the back. Also, I have 9-10 foot ceilings and had no problem having this fit comfortably and seems to be quite sturdy.
I bought this for my husband who is in a wheelchair. We have a roll in shower and thus need a place to hold all our shower stuff. The guests who say it is too short or too tall are not putting it up correctly. It is designed to fit tightly into a corner, thus you have to use your muscle to push it together and then twist to lock. Once you have it up it is sturdy.
This product performed admirably for almost a year in my old shower and the only reason it isn't back up at my new place is the movers lost one of the caps - which I am working on replacing.
Yes, the instructions are miserable. But, sometimes you just need to be smarter than an inanimate object.
As for the comments on durability, it seems sturdy enough to me. But, then maybe I am the 1-percent that actually managed to put it together correctly.