When I first saw these aerators I was skeptical. Sure, I understood the value of airing a bottle of wine and letting it open up. But this gadget seemed gimmicky. Then I received one for Christmas, and I tried it out on a cheap, young, tight red wine. It worked very well indeed, smoothing off the rough edges and making the wine more pleasant to drink. Since then I've used this quite a lot, mostly with cheap, big red wines, and I think that it makes a nice addition to the wine-drinker's bar.