I gave it a quick go at a store near me (had to wait because it was very popular!) The 3d was not as 'shocking' and 'mind-blowing' as the advert on T.V makes it out to be, but it was still extremely captivating and really brought you closer to the game. Street Fighter went well combined with the 3d, even though I was absolutely hopeless at it !!
Its a great piece of kit if you are a Nintendo Fan, I currently have the DS but i have to say i did seem to get a headache from playing street fighter for half hour.. Apart from that another great product from nintendo.