I think that design is great. I actually used it as an example in a project I presented in 2011 at a mathematics conference. The project/talk was about how you can take a simple design (HST) and create exponential # of designs with it depending on your grid (3x3, 4x4, 5x5, etc) and the importance of translation, rotation, and reflection in quilting. It's one of my favorite designs to work with now.