Excellent; I can't wait. The first two, The Gunslinger and The Drawing of the Three were quite good, but not in the greatness of the others. It was kind of hit and miss, some of it was very good and some wasn't as good. Most of the Wastelands and all of Wizard and Glass is very, very good though. Wizard and Glass reads quite well as a standalone, so even if you couldn't get into the others as much you might try this. Also, King has rewritten the Gunslinger (
story) so that the new Gunslinger will be released when the new hardcover series comes out. It's supposed to flow better with the rest of the books and be more simplified, so if you couldn't get into it before (I found it kind of difficult to get into at first), you might retry the series when this comes out.

I wish King would, after the series is finished, write some tales about what happened before what happened in the Gunslinger. Won't happen, but it'd be cool.