Treasure World is basically a number of small gameplay mechanics that feed into a giant one. As a result, the entire package suffers a bit on the gameplay front. Still, the gameplay mechanic at the core of the game is very impressive -- impressive enough to the point where I'm willing to give the game a bit of credit.
I'll put the efficiency of the Wi-Fi detection capabilities in perspective by drawing on a personal experience. I took a trip up to Natchez, Mississippi not that long ago. I decided to test out just how good Treasure World was at detecting Wi-Fi signals. I booted up the game, instructed the Wish Finder to detect stars, closed the DSi, and drove the 300-something miles to Natchez. By the time I had reached my destination, I had picked up quite a number of signals. In fact, I almost had enough to completely refuel Halley.
Not that long ago, I took a trip into town with my DSi open, just to see what kind of signals the game was picking up. Many of the stars are simply the name of the network encountered by the game. I passed by a recruiting office for the Louisiana National Guard, and sure enough, that was the name of the "star." This kind of stuff might not be that fun, but it is amusing to see what it picks up. Plus, you get free in-game stuff!
When the Wish Finder doesn't have his telescope out, it's all about customization, customization, and more customization. We're talking clothes, animations, plants, ninja masks, and much more. If this sounds appealing to you, you'll no doubt get lost in all the stuff you can get in Treasure World.
I've got two final warnings about Treasure World. If you don't like to get out of the house or collect items, you won't like this game at all. However, if you're a travel-prone collection enthusiast, I can say with a straight face that Treasure World has the potential to treat your time the way a hungry dog would a rack of baby back ribs.