I've only made one...... and being the OCD person that I am, got really frustrated when I was putting the blocks together. Lining up the 6 layers of fabric wasn't difficult. I used pins to line things up and it was fine. And I did have the book. There are 3. I used the 2nd one.
My best suggestion is to pick a fabric that has big colorful designs. The fabric I used had too much overall design so there wasn't enough variation for my liking. I think that's what made it difficult for me to place blocks in the end. My SIL wanted to make one so I suggested that she find the ugliest fabric she could. She did..... that fabric was really ugly. But, the quilt is beautiful.
Okay, here's my OBW quilt.