Bought it, played it, and beat it in less than 2 hours. I read that it would take about 3 hours, but that wasn't the case for me (closer to half that really). Didn't notice that it wasn't 16:9, it looked fine to me, and normally I hate stretching. How would one know that this isn't a 16:9 game?
I had some problems with the controls. The game tells you to stand while playing, but it has a form called "the elephant" where you put the controller up to your nose. When in this position the controller is above my TV and sensor bar, this caused a few problems and I had to sit down or just hold the remote differently when playing certain games. I found that doing the squat game sometimes it wouldn't register my action of either squatting or getting back up. And lastly it seems like if you perform an action too quickly it doesn't register, but I couldn't seem to go at a proper speed to complete the longer shredding games. The short one was easy but on the longer ones when I tried to go at a fast speed it would just stop moving on screen altogether, and if I do it slower I can't complete the task.
Anyway, it was fun and I will probably get a bit more fun out of it but it really should be a $30 game like the GC version was when released. At $50 it seems like a ripoff, but I'm hoping it will provide a decent amount of multi-player fun in the future. My Warioware experience prior to Smooth Moves was limited to having played the GC game a few times at work, and watching others play it. though I thought it was fun I never bought the GC game because I didn't want to invest in extra controllers, but with the Wii I already have 4 so it seemed like a good game to have around for gatherings.