Clear Blue Advanced

Has anyone used Clearblue Advanced OPK? The ones who have, did you have reliable results with the tests? The first couple times I tested I got nothing, which was ok because it really wasn't time for ovulation, but the past few days I've only got the smiley face, which means high ovulation, but I still haven't received a peak smiley. I'm going to test again tomorrow and see what I get, but tomorrow is really my last day of ovulation according to Glow.

Thanks for any insights!