Good so far
Used these for the first time this month. Started testing on day 6 as directed. Got the blank circle for days 6-9, a smiley on day 10 morning, and as recommended by other users, tested again in the afternoon and had a blinking smiley. Not far enough in to the cycle to get a bfp, but was glad with how well the test worked. It seems to line up well with the fertility apps that I use and I think it will be worth the price.