Ask HN: Any reviews about Bradfield School of CS (creators of teachyourselfcs)?

https://bradfieldcs.com/courses/

These are the makers of https://teachyourselfcs.com/. I notice that there are many courses, but at the same time $1800 per course is a bit too much considering USD conversion. So, I am looking for reviews if anyone has taken it, and whether the cost is justified.