Don't bother trying to sell it, you'll lose all your credibility. I have one, after like 1 solve it gets so loose to the point that you can't use it anymore.
I have never tried a v-cube, so I don't have anything to compare. But, I think the quality of the YJ is pretty good. It locks up a little bit, and because its "stretchy", it feels like its going to explode in my hands whenever it locks up. But it hasn't ever exploded on me >.>