What do you think??

I'm going crazy to know if we are having a boy or girl! I want to start shopping NOW!! I have found something interesting and wondered if anyone else has ever heard of or used this little wonder.
It is a test that you tinkle into and then the results of either boy or girl show up in about 10 mins. You can read more about it here On their website it sells for 34.99 but I saw this product somewhere for 23.99. Their website says that it is 86% correct when used between 10 and 34 weeks. So ever heard of it, used it, seen it??