I suspect that you don't have any Fish products and don't know anyone who does. Be careful about what and who you slag on the internet - this is a small community and for all you know, someone who designs and manufactures these products may be reading this very thread.
Until you have personal experience with this stuff (haulbags, Fish products, etc..), you should consider keeping your opinion to yourself.
Since I'm starting aid, and hope to do some walls in the future, I asked a knowledgeable friend (who has been climbing for quite a while) what sort of haulbag I should get. They recommended a BD or Metolius Bag, and not a Fish one for the reasons mentioned.
I'm just giving the OP the info I've heard.