hi arvi,
the part i found most enlightening of ISp was the early learning part...which covers almost half of the course..if u hv already read doman books...u mite not find it really helpful cos i felt the book taught better than at the course...the course does provide insights into parenting like to be a positive parent...ur communication with ur child..vision for ur child..sleep talk etc...
it all depends wht ur expections of the course are before u take up the course...generally they hv a preview of the course before the new course begins,,maybe u can attend that and decide...