NOTE My updated review is here:
I got my copy of the Complete B/X Adventurer in the mail yesterday.
It certainly lives up to it's hype and to it's predecessor the B/X Companion.
You don't need the B/X Companion to use this, but it certainly helps.
It reminds me a lot of the old Bard Games "The Compleat ______" books. That is a good thing in my book.
I will get a proper review up soon. But here is the brief one.
I like it. I like the witch class but the summoner might end up being my favorite.
Can't wait for the PDF so I can have it on my tablet.