ClutchPrep really helped me on some Chemistry. I did not understand the way I was taught thermochemistry from the textbook. I got lost during my lecture and I was able to watch a chapter review from ClutchPrep and I felt like I understood it a lot better afterward. My only complaint for ClutchPrep is they made the practice problems harder than the problems in my textbook. This is a good thing and a bad thing because there was some stuff in the problems that I did not have to worry about for my regular class. On the other hand, it also helped me learn a few things.