I purchased this, as oppose to cheap alternatives, mainly due to their claim that it doesn't leak. I've had a few cheap versions in the past and they all seem to leak when I've taken them on airplanes. Not sure why and thankfully I've had them in a plastic bag but I've now taken this one away a few times and it's remained leak-free. Great product.
I had one of these on my iPad 3 and when I switched to the iPad mini it's the first thing I bought. There's so many covers on the market and yes, most of them are much cheaper but I love the simplicity and the quality of this.
If you want to get into your wine fast then this is what you want. It makes opening bottles of wine (with corks or plastic corks, obviously) and absolute breeze. It's also got a lifetime warranty or 25 years - I can't remember which but that's pretty darned impressive.