I felt the same way about that stupid maze. At one point, I couldn't remember whether I'd hit the middle one 2 times or 3. I gambled that it was only 2, but was terrified I'd end up having to backtrack or restart. (I guessed correctly, thank God.)
I normally don't give a crap about card backs (right up there with different coins in my "who freaking cares about this?" category), but I'm using this one for a while. I worked too damn hard to have it sit in my collection, unused!