Very conflicted about this. I had waited so long to read it (many, many reasons for that), and then it took me forever to read it. Part of that was due to its physical size--this isn't a book for bedtime reading. I get that with annotated editions every last detail has to be traced, but at times the exhaustive detail was, well, exhausting. My favorite bits were where the editor showed how a few brief sentences were later expanded into chapters in the LH series.
The original text is good, but almost hard to believe that the iconic LH series came out of this original text.