He is the author of the book All-in-one PE Guide. The reviews on amazon.com are very good as well. I had attended his class room courses and now it is being offered online. I can tell you that you cannot go wrong. He is best as far as Structures and Geotech go, probably I would say one of the best in the country if not the best. I took my depth exam in transportation and most (85-90%) of the topics we discussed were there in the exam. I was impressed and would recommend it.
I took the School of PE for the April Exam. Passed on first time. Used their notes for about 80% of exam. I used the CERM for the rest. The review material was great and I would recommend the course.