A fitting end to an epic series. Follow Roland's final journey to the Dark Tower with is faithful friends and find what awaits him there. I wasn't disappointed. 
 For all those people who say the series went off the rails, I would recommend persevering to the end. 
 My personal favourite of the books was book 5, The Wolves of Calla. My least favourite was the first book, The Gunslinger, which was quite short and not a lot happened. 
 The author insertion in the series wasn't really to my taste, but I can understand why this was done. 
 This series is definitely Stephen King's magnum opus.