Is NiPT test accurate for gender and other results?

Hi, I’m 10 weeks pregnant at the moment and my doctor gave me a referral for the NIPT test. She told me its expensive, didnt say I must get it as I have no previous history of any issues but my kids are all from my previous marriage. Has this test been wrong for anyone gender wise or any other results? Im worried to get it and anxious about results but also excited about finding out the gender so early!