I highly recommend the plugin from my experience thus far (couple weeks). It is a well put together tutorial series, which I am hoping they will continue to grow and develop in the future.

$19 is nothing to get a clear lay of the land for a novice just taking up the WordPress reigns for their organization. We would all do well to get these in more people's hands, it will help their development of a firm foundation in WordPress.

I love not having to reinvent the wheel to help clients hit the ground running with WordPress, well worth the monthly investment on my part.

IMO, Better they (customers) understand WordPress, more of an inkling they'll have of the possibilities it affords its users, which means more work. :)