http://www.ign.com/articles/2012/11/07/i-spent-the-night-with-wii-u Some great information on what the Wii U is, and the features that Nintendo is providing with it. Yes, everyone can argue that the Wii U graphically is not going to be any better than the 360 or PS3, but thats not its selling point. Check this out to see more! Also, I will be making my own review when my arrives a few days after launch
I don't doubt that it's likely going to be good, but it really comes down to what games there will be to play on it, and what will come out to make people upgrade from Wii or buy this instead of sticking with their PS3 or 360.