It seems to work well for my wife, who has poor breathing at night, and it helps her get a good night's sleep, which we've been using and there's almost no feeling in the nose. It looks good, the device is easy to clean, and we found it really useful.
I was almost shocked because I found the perfect product. The problem with most of these nose vents is that they always fall off at night, I try it while running. They remain in place, are comfortable to wear and easy to clean, and are suitable for most adult noses.
I can't believe it works. I don't see how just widening your nasal passages a teeny bit would change you from a mouth breather to a nasal breather, and not snore any more. I have been described as having the most diverse repertoire of snoring noises ever. On the first night of sleeping with this little thing in my nose, my husband reports that I made no noise at all!