I bought a Rubik's brand from the store and it was painful to use, so the next day I did some research and ordered a Rubik's DIY... then I did some more research and ordered an FII, they took a week to arrive and my time went from 2:30, to 1:30 straight away. Now I can't believe I even touched the storebought cube, it's horrible. That's why I think beginners should start on a nice out of the box cube like an FII, I wouldn't have stuck with the cube for much more than a week if I still used the storebought one.