I like that it is easy to pick up where you left off with previous lessons! It's also very interactive which helps keep your attention during long sessions of training- sometimes our instructor can be boring or not engaging enough for my taste (weird accent).
There are some people who have trouble learning through video tutorials alone so this may help them out as well since they don't need physical instruction while watching at home/at work if needed. We use these modules mainly in trainings but we're able implement what has been learned into daytoDay operations when necessary too - especially things related security awareness such us phishing emails campaigns etc.- all sorts really :).