When I bought these odor blockers, I immediately put one in each bathroom, and I carry a third in my purse. I love the scents, but most of all, I love how well they work. They literally created this beautifully scented barrier between the toilet bowl and your nose. I can't tell you how fantastic these are. I also like the fact that they're not a spray. The scent is not overwhelming like with most sprays, and it's not just masking unpleasant odors, it blocks them from escaping the toilet. Make sure you put a few drops in before and not after; that's key!
Excellent product. I highly recommend.