Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Easy to use

I've been TTC for about two years, and although I have yet to get a BFP, I always use these tests. They are very easy to use, though a few times I have had a "phantom line." That's my only issue with these tests. Then again, I didn't feel like paying $30+ on a pregnancy test I knew would end up negative month after month.