As a transfer student, this was the first Econ course I take at UCLA(I took Econ11 at another University). I was nervous about this course especially when seeing the previous reviews. However, the professor truly understand everything and he is so neat and clear about explaining concepts. Sometimes I am amazed by the way he solve problems as his brain is moving so fast.
The course has 2 midterm(higher midterm 30% + lower midterm) and 1 final (50%), the median is around a 75 but he does gives a very genrous curve so the median student will receive a B or B+. Make sure to do every single practice problem before his tests(including the ones on lecture slides), no homework and no problem sets weekly, but please don't slack off and don't wait everything until the end. His office hours is also helpful. I got A by doing his practive problems and understand how to do them without looking at the solutions and going to his office hours when needed.
His exams are fair and doable. If you really interested in econ, he is the right choice, you will learn a lot.

Vogel's slides were pretty clear. I understood a lot of the concepts just from reading his slides. His exams were also pretty fair, and reasonably tested what was taught in class.