Mr. Chow is a really good instructor. Definitely worth it.

Really productive.

I am currently in college and my college doesn't have many cybersec courses. This one is great for beginners and is easy to understand if you give it time. Despite getting you used to the terminology used when handling DDoS attacks, it will teach you the methodologies used to mitigate, thwart or tolerate them. It won't teach you step-by-step how to implement those, but it isn't hard to learn it yourself if you're curious enough.

unfortunately I did not understand that English dialect.

It was difficult for me to understand what he was talking about. The automatic subtitle does not recognize a lot of words. Most of information in course are outdated.

It is a very interesting course. Although most of the materials are quite old, surprisingly, they are still valid. The information is practical and detailed. You can check the Linux commands yourself.

Please add some practical task and improve some Docs. like don't add pdf of 170+ pages no one is going to read them ,add as more as Videos