This is your typical BradyGames guide, several typos and short on information. Unfortunately it is all you have at the release of the game since online guides (at least good ones) do not exist... yet.
These are helpful to see the entire zone; the map in game is zoomed in really far so you have to scroll around to see different areas making it difficult to get the overall picture. The downsides to the maps are they don't show anything but logic stone locations (save points). They do not tell you where harvest points are and they do not tell you where treasure chest locations are. In the text of the guide they will tell you some of these, but far from all of them. I could forgive them on the gather locations since there are a lot of them on each map, but not the treasure chests. I trusted the guide at first to let me know where those where, but when I went back later to do some grinding and to collect resources I found several more in areas that were not a direct path to the next story objective. Very disappointed in this.
This is decent enough; it will guide you through all the puzzles in the game and keeps you on track for finishing the story. As mentioned above, it will point out some of the gather locations and treasure chests. It gives you the map grid location, you then must search within that grid for it. Sometimes it is more specific (Southwest corner for example) but not always. I have found some errors though, like telling you to go somewhere you can't because you need to complete a story event first. It will also tell you how to build your characters (in a general sense) if you need that kind of advice.
They work, but I sometimes wonder if they even played the game. I imagine the advice would be more useful if you did a minimal level play through of the game, the advice plays up the boss fights as if they'll be very difficult when most are not. These are not bad though.
Each online quest has a page in the guide to explain it. There is a table listing the boss and drops you can expect for each variation they have (Guild Rank can change the quest: Higher rank = Harder boss). There are some typos in this section which makes things annoying.
This section is pretty good actually. It lists monster weaknesses and strengths along with drops and their rates. The list is also in alpha order instead of some arbitrary order. The list is broken into two sections, large monsters and normal sized monsters.
Big list of equipment, another useful section. It lists all the weapons, armor, and accessories along with what items you need to fully enhance them or to bind them (craft) in the first place.
Really hate this section. It's just a big list with the prices that they cost (if you buy them in your Georama). This isn't useful at all. What would have been useful is if the guide told you HOW and WHERE to get these items. When you need a bunch of items to bind an item or build a georama part you are going to want to know how to get them, and get them fast (highest drop rate). Sadly, this guide does not tell you any of that. You'll have to search through the bestiary and find it yourself. One of the entries is missing, it even throws the table formatting off, very obvious typo that makes you wonder if this guide was proof read at all.
There are a few sections on the Georama aspect of the game, I'll lump my comments together about it. It will list out all of the parts you can build, the items needed to build them, the cost, and the benefits it will give. There is a section that shows every NPC you can recruit and what their stats are, and what city they are in. What this section really lacks is a section that tells you what level you need on the different stats to get items for sale in your general store. Again (as mentioned in my Items section) this would be VERY useful when you are trying to get specific items.
I rate this guide as Below Average (that is what 2 stars means) because of the errors, typos, poor maps, and being absolutely no help on getting specific items (which is a huge part of the 'end game' in WKC). If you got it for just the story walkthrough and nothing else it's not too bad of a guide and it will get you through the game easily enough.