This will be my first mystery quilt as well. I already have most of the "alternate" rulers - Easy Angle, Companion Angle, and the Tri-Recs - so I'm good there. Plus, I have several AccuQuilt dies (which she mentions she is not going to reveal, as it would give away the mystery).
Anyway, I'm going with her recommended colors, but Givio's colors make me think of French Provincial fabrics, so once the mystery is done, I may make another quilt in French colors. We'll see. It just depends on if I like the finished results.
Can't wait until this starts!!