I think this is my first class review. I have taken all the app creation lectures so far and honestly, it is worth listening to. The voice is good and I think anyone can make the same app if they follow the code one by one. Sometimes I missed one and had to revert, and I panicked when an unexpected error occurred, but I think I can do it if I have the courage to calmly search on Google without being impatient. However, since it is a lecture that compresses the Kotlin language to the Google Play Store release in a short time, it can be very difficult to completely understand it at once. I just followed along with the parts I didn't understand in the middle. However, I personally tend to learn by skimming through it once and understanding why it is necessary and where to study, and then going deep, so I think the lecture was perfect for me. I plan to listen to it 2-3 more times in the future and have time to completely understand the code I wrote👍