Dark Tower 4.5

Greetings, folken.  I have indeed read this unexpected return to the world of Dark Tower.  A quick read, compared to the others.  Pretty entertaining, if lighter fare than most DT books, or most King books.  Essential reading?  No.  If you were done with the books and swore you would stay clear of them, you can live without it.  Necessary?  Not quite, though this does have a bit of a connection that might please some.  Worth reading?  Yes.  King is as comfortable in that world as he's ever been.  And I suspect he has some more untold tales to tell us, and I would not object.