Nijay has some good final reflections on the HJBG and HGBJ books.
See here.
On the positive side for Ehrman, he writes:
Confession: I am using Bart’s book as a textbook for my NT Christology course, and I genuinely hope students will take his arguments seriously and engage his evidence as rigorously (and openly) as his logic and evidence merits. But after reading the book, I am not optimistic regarding what will come of it. But here is where Bart shines – he always leaves you asking more questions about the complexity of Scripture and Christian origins. That is worth the thought, but is it worth paying him money? I’ll let you decide (sorry students).