My naturopath told me to get rid of it. It caused me so much stress. At first I didn't wait long enough and didn't get an accurate result. I found it a bit subjective. Although I must say I also found OPKs a bit hard too because I couldn't tell when it was a strong line until after the fact. so, I'm not really sure. I guess if it works for you and you can tell when you ovulate, go ahead and use it. I guess what works for one doesn't for another.

Good luck