I made the night & day last year, I'm not good at following pattern, I usually do paper piece for the more complex looking patterns. However, I Was able to work through her book without pulling out my hair. Definitely do a practice with less expensive fabric before you use some you love, and she gives you a way to use the scraps too, which is great cause there is a ton of fabric cut away. The Quilt turned out beautiful and I donated it.
Good luck, tough decision, but again I would give it a try with practice fabric then decide on the class.