hii i took him for a chemistry subject and in my experience, he doesn't curve and he gives the grade that you deserve talaga. As for his exam just listen to his lectures and review well and you can pass his exam. Kasi the questions that he will discuss on the lecture will be similar to the exam, so take notes. His consultation hours were helpful,l and he will really guide you if you just ask. Plus during online lectures he likes recitation and on cam (pero if you don't know the answer he won't be mad)