I don't know...these vacuum-pack containers are pretty common these days, and becoming more inexpensive (I even see them in my local grocery store now). I have an aluminum version I purchased for twenty-something bucks from Amazon. It works, meaning it contains the beans I store in it, but no better than any other container I might use. And as for that wimpy little frother--I'd have to see some proof that it can actually accomplish what the photos are suggesting. It's cute, but I certainly don't think it can do this:
RayFWe have had one of those frothers for a few years now and my wife uses pretty regularly. It's excellent - extremely well made, and shockingly powerful, given how slim it is. It churns out great foam. It's *frother foam*, mind you, but if that's what you're after the machine does deliver.
I also once used it for emulsifying vinaigrette, and it's perfect for the job, but I caught hell for it, so I have not bothered to repeat that one..