I am totally obsessed with this bundle. The possibilities are endless in terms of paper choices. There is no (or little) inking or training so they go together so quickly and easily. As always the engineering is flawless and the tutorials are so helpful. My favorite to look at is the silver bag, but I find the easiest to put together is the copper bag. Logically the gold bag should be easiest because of the straight lines, but the copper bag goes very fast for me.