While I do enjoy the Spore game, it's a bit difficult to argue with his review. While we were told we were allowed to stay in the "tide-pool" stage for as long as we like, once you reach the sentience stage, there's nothing else to do! You don't get anymore DNA points, nothing to unlock, and no chance of really building an underwater empire.
The rest of the stages are very short, and no real chance for differences other than seeing creatures other than the millions Maxis spewed out so that you only see creatures from other players once in a blue moon.
While the Create your own building, vehicle, ship, plane, spacecraft is pretty cool.. it can get a bit tedious. Not only that, but in order for you finish the thing, you have to give it a name. I don't call my house Paul, or nickname my car Shirley, so why on earth do I have to name the dumb thing? Why not default it at "A house" or whatever, and if you feel like changing it's name have the option? Although, building a house that resembles a giant monkey climbing out of the ground was fun, and my spaceship having inspiration from the taxi in 5th Element makes me laugh, does make the game a little more enjoyable.