I'm an intermidiate beginner and have done three of Bonnie's mystery quilts. I actually found Celtic Solstice to be the easiest one. She offered this one in two sizes. I did the smaller size. Those chevrons do take a long time, they aren't difficult, but they have a bunch of pieces. This was my first experience with the Tri Recs ruler and I loved it. Good luck, you'll have fun with it!