Having had a long hard look at what they offer my feeling is that they employ some really good sales people. I have actually researched many of the topics via a search engine such as google and received just as much info as the modules could offer.
Whilst I appreciate that a lot of hard work has gone into putting the site together, our job is actually a practical one and certainly doesn't give any idea on any individuals capabilites such as swimming with lifejackets on, fire practise, evacs and how to serve the preverbial G&T. etc etc
Save your money and let the professionals who have the equipment do a proper job for free (ryan air excepted)