I also purchased the Vinturi wine aerator earlier this year. Initially, like Jaiyla posts, I was concerned about the cracks in the plastic but also googled this and found out they’re meant to be there.
Overall, I think the Vinturi is a very good aerator and helps to improve the aroma and flavors, especially in young reds, however I’m not too keen on the gurgling it makes, and also having to hover it over your glass while pouring.
My wife and I recently went to a wine tasting evening, where another wine aerator was being highly praised by the wine buffs – in not only performing as well, if not better than the Vinturi in blind tastings, but that it was more attractive and versatile and really brought a sense of occasion to enjoying a bottle of wine – all qualities that really sold it to me to try out.
It’s called the WineWeaver http://www.wineweaver.com and it comes in four colors which you can use with both glasses and decanters.

The aeration chamber is moveable to suit the exit of the wine to the shape of your glass to enhance the aeration, plus you are able to sit it directly on top of your glass because it weighs next to nothing.
I have to say that after searching the web, I bought one of these from Amazon.co.uk rather than their website, as Amazon UK were offering free postage to the States - and I like a bargain http://www.amazon.co.uk/gp/product/B002USHA8A/sr=8-3/qid=1257955032/ref=olp_product_details?ie=UTF8&me=&qid=1257955032&sr=8-3&seller=, and I have to say that it really has proved to be a very good buy.
Again, makes a less expensive bottle taste like a more expensive one, softening the tannins, and really bringing out the fruit in the wine.
And with regards to cleaning, it’s safe to just chuck into the dishwasher.
Having read that most posts seem to be impressed with the Vinturi like I was, from one wine-lover to many others, I can whole-heartedly recommend the WineWeaver aerator for functionality, performance and great design!
J Darke, Chicago