Despite of no advertising, WotBS is well known, even if most of my players could not connect it to EN - as they aren't really here. I didn't pay much attention to EN Publishing until someone brought me a printed out (barely readable) copy of the first 3 parts of the above mentioned story. Now they wanna play it and insist in incorporating the whole into the ongoing mega-adventure madness which would mean turning it into Pathfinder (how long is this campaign supposed to last again?). We'll get the PDfs somewhen in January with the next drive-through RPG purchases of our group. That's the plan anyway.
I think what I've seen of the APs from EN is better than a lot of the published adventures - although "Santiago" is such an overused and uncreative name, really. Maybe there is a reason for it, but really, there are so many names to pick from, or make up your own. The delay in Zeitgeist is a little annoying, yes, but my group will have at least a year before even thinking about incorporating it anywhere.
That said, $6 for a month subscription is not something I can currently do, so unless I get a hold on the hard copies of the other APs somehow I will probably not be able to run them. Not saying it is too much money, but I can't really justify buying any more APs when we aren't quite done with the Paizo ones yet
As for the PDF vs hard copy - I do not mind the PDFs at all. I have the info on the laptop screen, but usually I just happen to remember what I need save the NPC stats, which I usually just jot down on old paper. The few printouts needed for players and the maps aren't an issue.
PDFs, at least, do not drown in coffee, beer or are smothered by pizza, and the cats can't chew them up either.
What I would do is have the SHOP link in the menu more visible, probably in red or in a red box.
As for the lack of reviews - guilty, I am.

I tend to forget to do this with the PDFs I buy. The reason is simple, I do not usually use the stuff immediately and forget later. Maybe there should be a "don't forget to rate this" link in the PDFs leading back to where you bought it from. m