I felt as though I was there with Thomas the whole way through the book. Dashner always, somehow, knew what I wanted to ask, and had Thomas ask that question. It was really quite freaky!
Although the action really didn't kick up until later in the book, I was still hooked just because of the strangeness of the situation and how Thomas was dealing with it.
Some people might disagree, but I found the futuristic slang really interesting, and it somehow felt natural, maybe because Thomas as well felt that it was weird and strange, and eventually, Thomas and I both got used to it and it felt normal.
I think this book is amazing. Maybe not everyone would agree though, because some parts were quite strange and I got a 'weird' vibe coming through. But this book was totally for me, I really loved it and was hooked from the first to the last page!!!