It is not a level of difficulty that you can take lightly. There are various reviews, but it is not a lecture that is spoon-fed to you. I personally watched it as if I was watching a coding show. If the period had been 1 year instead of 3 months, I would have given it 4-5 stars. I think it is a lecture that can be taken by those who have experienced React or Next. I agree with the review left by Nadu Coding and just watched it as if I was watching someone else's programming process. I have taken more than 10 lectures from Inflearn and purchased more, but this was the least satisfying lecture for the price.