I bought this game, thinking it would be a whole lot better than on DS, but, quite frankly, it's very similar. I was expecting much more of the City, also.
I transferred my character from my DS onto the Wii, and, it wasn't worth it. I thought that your items, and even your town would go with you onto the Wii game, but they don't. I was quite annoyed when I had to start all over again on the Wii.
However, there are some good points about this game. The T.V screen is a bonus, as it is much larger than on the DS, making things a whole easier to view. With the screen, even the graphics look a whole lot better than on the DS.