I had Popescu for Phys 1, 2, and 3. Her video lectures for Phys 1 and 2 were really well-made: informative and concise. I found her in person lectures to be hard to follow at times due to the difficult material so you really have to pay attention. She offers a lot of extra credit so it shouldn't be too hard to do well in her classes.

Lectures were okay, and she definitely cared about her students. I learned a decent amount conceptually, and hw & online quizzes helped improve understanding a bit. Not too difficult to pass the class, don't expect to become a physics mastermind with this course, but you will learn general overviews of the concepts and do decent in the course.

I found the lectures impossible to learn from. She will do long and complicated derivations for the formulas you need to use rather than actually practicing problems. The rest of lecture was filled with her reading from slides which are copy and pasted directly from the textbook.

Awesome lecturer who just wants students to understand material. Doesn't care for making insanely difficult tests like most of the physics department.