I love it, its beautiful and i just rediscovered it in a box. I found them too hard to shuffle last time and i therefore trimmed them, i am not sure that was the wisest decision but i felt often the pictures spoke alone and the words got in the way for me.
I use them with the changing lines sometimes for myself as its a nice thing to spend time on, but it takes alot of time for me.
i dont think you need to do the i-ching thing, i sometimes just pull a card, sometimes i simply think of a number before i turn over the card and then take that as a changing line and read that. Sometimes you dont need to, something stands out.