NIPT anyone have it done?

G
I am 35 and my SO has an uncle with downs so I am recommended to get the noninvasive chromosome screening done. It's just through some blood work but I have mixed feelings about it. Even though it's done fairly early, I'll be 11 weeks, I don't know what good it would do me to know if there is chromosomal abnormalities. I mean unless they were life threatening to the baby what am I going to do about it? I can see how it might help prepare you if there is something but I've also heard they can read false which would then having me being a basket case and worried for no reason. I made an appointment which is in two weeks but I'm not 100% sure if I'm going to keep it. Anyone have this done or thought about it, heard anything?  TIA :)