Forget what company it is for a moment. Buying private shares of a pre-IPO company whose financial details aren't known is a very risky form of investing. On IPO day you could quite literally lose 90% of your investment before being able to sell it. You say you're not a stock whiz... so if you don't know how to trade the public stock market where information is plentiful, what makes you think you can do it on the private market where you are an outsider?

Take one guess what Goldman Sachs and their buddies will do when this thing goes public.