Bad.
The system has lots of potential but since what always ends up happening is 3rd parties doing as little as possible I see the Wii U's software lineup looking like that of Wii and GC. By that I mean lots of "family oriented" crap-ware along with ports of multiplatform games for the first 2 years. Since they will obviously sell less than on other platforms, there will be a steady decline in support until PS4 and Xbox 3 launch, at which point 3rd party support will be basically down to zero, leaving only the crap-ware.
Until you've played it, every game is a system seller!
Wii FC: 4810 9420 3131 7558
MHTri: name=BOo BoO/ID=BZBLEX/region=US
mini-games on consoles, cinematic games on handhelds, what's next? GameBoy IMAX?
Official Member of the Pikmin Fan Club