Harmony Test

I was offered the harmony test but my close qfriend recently moved to a small town and was not. I was just wondering how many people 
1-were offered the test
2-weren't but wish they were
3-have no idea what it is
4-were offered but aren't interested in knowing the sex
My OB told me next time to wait and let it be a surprise but I get too anxious when not knowing...the harmony test allowed us to find out right at 11weeks. What would you have done?