Self-stirring Original Coffee Mug, Teal

I gave this to my girlfriend's grandmother and she was very complimentary about it after a few months of use. Hard to say if that's just a grandmothers' politeness or not but the thing does work. I tried it out and a simple rotation of the mug produces significant stirring. I haven't tried the electric stirring mugs but if I can get it done with this simple, elegant solution I'm not inclined to try a more complicated method. Admittedly I do not remember now if the shipping was on time or not and I will refrain from speculating. Great product.

You have to fill to the top and when you turn it to 'stir' it spills everywhere.Maybe I'm using it wrong, but now its just a regular coffee mug and I still use a spoon to stir it.

There is a big fan, coffee spills when turning needs a higher top or something. Not worth my time probably not your worth your time

I do not like having to swirl the coffee in order to mix the sugar and cream. It causes it to spill.

Beware, this mug was shown along with a stainless one that used batteries. I thought ceramic would be nicer, but found it to be a different product. A nice mug with slots on the interior to assist with stirring, but not what I wanted.