I personally found Unit 1 quite easy as well, other than vectors, but I've also been finding Unit 2 pretty easy. I'd probably say not as easy as Unit 1 for me, but not by much. I reckon it mainly comes down to your specific strengths in Maths, so maybe Unit 2 caters better to your strengths than Unit 1. Many people in my class really struggled with Unit 1 due to all the geometric proofs and how visual it required you to be. In regard to your question about the exam - I have no idea yet. We had two exams for Unit 1, and I got 100% for both, and had a PSMT on the geometric transformations topic of Unit 2, which I also got 100% on. My Unit 2 exam is on Thursday, so I'll try to remember to give you an update if I remember lol