This is really more about Coptic than the language of the Pharaonic era, because that's when most of the evidence is from. Peust has some radical ideas about syllable structure (that I'm I'll equipped to judge the plausibility of), but otherwise it seems broadly in agreement with what else I've read on the subject.

It's a tad more obvious than Peust might have liked that English isn't his first language. Otherwise I liked it.