According to The Strategist (New York Magazine), the Vintorio Wine Aerator takes the cake for Best Wine Aerator and Decanter Spout in "The Best Wine Decanters and Carafes on Amazon, According to Hyperenthusiastic Reviewers".
One reviewer on Amazon said:
“Was pretty surprised, but this is easily a five-star product. The wife and I are red wine lovers. I bought this thinking that it would make good wine better, and it delivers. The aeration really softens the wine (especially if you’re drinking younger reds with higher tannins). It’s a heck of a lot faster and easier than decanting or pouring and waiting. I like that you are able to aerate only what you want to drink at that time. The spout is solidly built. I don’t think it’s going to break under normal usage. Also, it washes easily. Highly recommended.”