I'm 7+2 and aged 41 and am very keen to have one of the three tests above. They don't offer NT where I live stupid, useless Welsh Government and so private is my only option.
NT is 195 and done from 11+3 90% accuracy
NIFTY is 320 and done from 10 weeks. 99.9% accurate
Harmony is 550 and done from 10 weeks. 99% accuracy
Can anyone share their experiences? I am leaning towards the NIFTY but would be grateful for any personal stories. TIA.