<p>It's just a game guide which you can read in-game as an add-on, like an in-game lore book. And maybe it provides more, like quest tracking and tips. I'm definitely not interested in this kind of add-on especially when it costs definitely. I would like some tips, tricks, but I don't want to level up so fast because I would have missed a lot of fun. Anyway there's a free trial. You can see it yourself. </p>