I'm not familiar with that particular training, but I have participated in many training courses over the years, first as a participant, then as a facilitator and developer!
I learned a lot from such training programs and feel that training should be ongoing for everyone! I like the seminar/training class type of program because I feel you learn not just from the facilitator, but you get the opportunity to learn and share with other participants, too. And, while you can learn a lot by reading books and websites, the ability to interact and role play and just talk to other people can help you learn quite a bit that singular learning can't.
Plus, being able to put a list of continuing training programs on your resume shows you are eager to learn and that you take your career seriously.
In some careers or companies, one is required to participate in training programs on an ongoing basis, too.