Just a thought, I'm guessing this was done to save space, but...
It seems like there should be more of an... announcement when you get to a new chapter. When I first go to page 11 of the PDF, I thought to myself, "Man, they sure added a lot of stuff to this one chapter." I realize that in the print edition you'll see a big 4 on the right hand page, but it might be handy to, I don't know, advertise chapter transition a bit more.
Not that you need a big yellow page like the DnD manuals, I always hated that big yellow page thing they went with!