I reckon I'll have to come back to this one after I've read the whole Dark Tower saga. Knowing the broad strokes of King's over-arching mythos I got most of what was going on, but I don't think I enjoyed it as much as I might.
That said, it was not what I expected. I thought it would explore a failing mind by sleep deprivation into scary country, with some supernatural thrown in. This is not that book. Just letting you guys know, if you come with the same hope. Because that stuff in the hands of King would be freaking amazing.