IT sounds like a version of the simes which is more about building things then it is about relationships in the game. That is what I would worry about b3ecause that is what made the other sims game so interesting is the relationship buildiong aspect of it.
I always liked the house building aspect more than the relationship building aspect, but I was never much of a fan of The Sims. I only played the original. Maybe it'll turn out to be a huge hit for the Wii, it did fairly well for the PS2.