Rosetta Stone Chinese

Will the Rosetta Stone for Mandarin work for me, although I know some basic Chinese?
Therefore, I am still very young, and that means we can learn many other languages. I heard about the Rosetta Stone, and I thought it would be great for me dramatically sharpen my Mandarin Chinese. I learned a little earlier, but it's very, very limited and often have trouble making a complete, grammatically correct sentence without hesitation or stammering (but once I did.) So, if it works for me, I buy the second edition? I tried their online test and was super easy. I do not want to lose money. Should I buy with my terms of languages?
I have heard nothing but good things about Rosetta Stone, but I agree that competition comes to practice with native speakers Native Mandarin Mandarin. It is much the same with any language. I teach in Asia and the Americans and British are head to head for teaching jobs here. Other nationalities are also sought, but most of the institutions and language professionals who want the guardian of the mother tongue speakers.