I did not take that course. I will make several related statements:
1 I only passed the PE because of the review course I did take. So, I would say, SOME review course is mandatory.
2 I only used Lindberg's books - the CERM and the accompanying Quick Reference - for 90%+ of the test. So, I would say, anything PPI offers is probably very good.
3 I only used Lindberg's materials - bought through the website you refer to - for 90%+ of my exam prep. So, I would say, anything PPI offers is probably very good.
Remember, amateurs built the ark...professionals built the Titanic. -Steve