I've had my perfect bound editions of LL and AEC for about a week now and am really enjoying them. They take me back in time to when I was playing the hell outa AD&D. Only a couple of minor complaints:
First, the perfect bound is a little flimsier than I had expected. Having quite a few comic strip collections around here I expected something comparable.
Second, the basic rule book has the section title at the top of the pages. The AEC only has "Advanced Edition Companion". Why wouldn't the AEC have section titles?