Enjoyable enough, an easy read, but there were quite a few things that bothered me. First and foremost perhaps, it was the lack of something special, something intrinsically magical, going on. Not magic in the it's-impossible way (after all, there was a with who might or might not have been a real witch) but something intense in the words and the story.
Things were too easy, it seemed. (Why am I thinking of Nick Hornby's novel ("Falling"?) that disappointed me? Similar feeling.)
Luke's trouble with comprehending things outside his house was sometimes difficult to imagine. I told myself over and over: he's never been outside. But it is mentioned time and again how much television he watches. He would know hotel floors are all the same. That there are numbers indicating which floor you are on. Or, if you have never experienced it, is it too much, still? Can you not connect the tv images with what your own eyes see?