How do I put this... The book is entertaining and has some interesting ideas. That's about it. 
 Honestly, The Maze Runner starts off on a frustrating level of I have NO idea what's going on, portraying really mean and annoying characters that don't tell the protagonist anything at all. They're just like: "Oh, you're here. Bad for you. Okay, bye." 
 I'm not saying this was bad, I'm saying it was super frustrating to see Thomas struggle with his memories and being integtrated into the group, but it eventually lead to making me want to read more. So, as I said, it wasn't bad after all, just frustrating. 
 To be honest after the first few chapters I really got to like some characters, although they tend to feel a little bland and far away, not really connecting to the protagonist or the reader, but they were entertaining. 
 And I quite liked the idea of the Maze and the Grievers and that some of those guys had been trapped in there for over two years, sorting out who had to do what job to survive, although then the (view spoiler)[brainmapping doesn't make so much sense because if they really took several years to brainmap some of the kids, how do they only need a few days to map Thomas and Teresa, but oh well, science-fiction freedom, I guess. (hide spoiler)] 
 It felt like James Dashner got a little sloppy at the end because everything happened quite fast and I don't know if it was just me but some things just felt quite surreal and different from the overall tone of the book, so it really felt rushed or, as I said, sloppy. 
 The language isn't the best, not bad, but no literary masterpiece and I get the idea of giving other names to swearwords, since it's a novel for teenagers and young adults, but it felt a little childish to be honest. I mean if I was trapped in a Maze full of shiny globs of monsters trying to ram pointy weapons into my body every night I sure as hell heck would be swearing. A lot. 
 But I have to admit that it was a fun read after all, so it gets my approval, but there are other similar books out there that are better in my opinion.