I recently completed the 2-Day Challenge, and it was an excellent introduction to Grasshopper. The course offers a clear understanding of how the software works while showcasing its vast potential. The examples are easy to follow, and Ertunc explains each step in detail, sharing valuable tips and thoughtful recommendations throughout. What truly sets this course apart is how it explores the core principles behind each concept. It not only teaches you how to use Grasshopper but also helps you understand why it works the way it does—opening the door to the endless possibilities of parametric modeling. I highly recommend this course—and Ertunc as an instructor—to anyone looking to gain mastery of Grasshopper. Thank you, Ertunc, for your incredible support and for two days full of valuable knowledge, engaging lessons, and a fun learning experience!