OMFG and I'm 46 and don't text speak, until just then.
I like fast moving, page turners. I also have a Physics degree and struggle with Sci Fi because it's too unbelievable. Obviously, you have to suspend belief, but for me there's limits. This series has been perfect in that regard to the point where I don't notice it.
I'm going to keep this brief; the story is awesome, the author has created a layer cake of mysteries, with plenty more left unanswered. The characters are varied, interesting and I especially love Roland who just likes blowing stuff up, getting drunk and fighting.
Mate, for the love of God and the sweet baby Jesus please release the next one before Chrimbo. And, then write loads of 'em. I want more Roland and his fat sidekick Len, sorry Ch'Len (I think ?).