I've tried other languages before, but Swift syntax felt vaguely unfamiliar to me, so when I was working alone, I just kept googling and using things as I encountered them. But this course builds up the structure step by step from the beginning, so all the syntax I had just memorized and used before finally clicked - like "ah, so that's why it's used this way." After taking this course, when I read documentation, it's much easier to understand too.