Amber Book Study Schedule Realistic?

The latest Amber Book Study Schedule suggests studying the entire material for all exams over the course of 7 weeks and scheduling & taking them all at once. I am wondering if anybody has followed this route or a similar route and has any experience to share?

I have about 5 years of professional experience and wondering if it would be a realistic strategy to mainly follow Amber Book material and do some practice tests on the side.

Any comments?