Hi Data - less us know what you think. This is the first time I've heard of that site, which according to the info is basically about $100 for the course work.
Had you investigated any of the free sites on the web? Granted, the info is scattered all over the place, but there are many free resources in a variety of areas, especially our own POTN. It's not a course of course, but the folks here will assist with tips, share info and pretty much answer any question you may have.
And there are also books - there are a number of excellent books you can get for under a $100. Good luck - I'm sure other folks will add their suggestions soon. - Stu