Bought this frother on kind of a whim after seeing one that my friend was using when we went to visit. Hers, however, was rechargeable. Turns out she ended up throwing hers out six months after she bought it. Mine is still going strong at least a year later.

Works great, doesn't drain the battery quickly (we use rechargeable ones anyway), and I constantly think of new things to use it for.  Just be careful as it will also make a mess until you've adjusted to how it works.

Pros: Can quickly froth up just about everything.
Cons: None that I have found