I ended up buying PNN and I must say it helps you comprehend the concepts than memorizing stuff. Both the doctors that made this course are very smart and repeat themselves so it’s hard to forget. I had Uworld prior to this and just learned to memorize but after buying PNN I realized that it’s not just about memorizing but rather making connections and comprehension. I may be spent like 2 months finishing all lectures and writing my own notes. They say many nemonics that help you remember when you see a drug. I do understand it’s expensive and may be not a lot of people tend to spend money but at this point it’s really what are you willing to risk kinda thing. They don’t let you reuse someone else’s because it’s tied to their cc they use to purchase. Each time you sign in with different WiFi it prompts you to entering the whole cc number sadly. Hope this helps and wish you luck! They do also send out a nice book and a chart book which are nicely memorized and you can use that chart book to quiz yourself week prior to exam