Correa and Quijada were great professors. They really cared for the students and engaged with them during lectures. Their midterms were challenging, but really comes down to your own studying. Villanueva's pace was extremely irregular because he taught on concepts we already knew, but when he got to nuanced info, he just blazed right on through. Class had two midterms and one final, and was not cumulative. Just study hard, you made it through PHYSCI 107, you can do this.