I bought this for my wife, and she was thrilled with it for about 3 months. It worked great during all that time and then all of a sudden it stopped producing any real froth. It started just producing some bubbles that quickly dissipated, leaving the milk as flat as before. Changing batteries doesn't fix it; it appears that it simply doesn't have the RPM it used to have and can't do the job anymore.Having gone back and reading more of the negative reviews, it seems this is a common thing. Some get their Aerolatte in this state from the get-go and for some it works for a while and then slows down like it did for us. It's such a shame because it worked really well while it lasted. If it was half the price, I might consider buying a new one, but at this price it's just not worth it. I will look for an alternative.