Started Classic Who when I felt like I needed more after finishing NuWho, and I must say this is a great way to begin the story! I couldn't wait to properly meet Susan after all the mentions of her, and I find her so so so endearing and sweet. Perfect description of a neurodivergent teenager, tbh. It's a great introduction to the characters and both Ian and Barbara and the way their personalities clash with The Doctor's are so enjoyable. Seeing the first Doctor after knowing what comes next is so much fun. I love the inherent traits of his personality and I can't wait to see more of him.