The overall course difficulty and curriculum are okay. Since it is a tutorial course, the difficulty level should be at a level where beginners can get started without any problems, but there were more parts that were arbitrarily omitted than expected. The overall curriculum is good, but the instructor's voice was hoarse and the sound quality was not good because he smokes a lot. For those who are applying for this course, don't expect too much and just go with the level of Ionic being like this. Rather than a good lecture, it seems like they are teaching how to use Ionic documents.