I have taken 2 intelligender test. The first go round gave me a girl result and at the 16 week ultrasound...we found out we were having a boy! Then, just for the heck of it, I took another test in this pregnancy. Well, it gave a definite boy result. We just found out we are having a girl! To top it off, the sonographer said that she had scanned 14 people lately who had taken the test with only 1 giving the correct result.
I know some people swear by it not working due to not following directions. Well, I followed it to the exact both times. I will never trust that test again.