It was okay. I wish there would have been more back and forth between The Institute and what Tim was up to. He was the most likeable and realistic character in my opinion, so leaving him unmentioned for hundreds of pages was odd.
The political stuff made me roll my eyes, but it's no secret King is a liberal. Just get used to it.
There were some "edge of your seat" scenes, but mostly felt like the book was lacking. Not one I plan on reading a second time and I doubt it will stick in my head like the great King novels.