This mixer is intended for the daily smoothie for one person. The system is very simple: to mix the same in the container and only exchangeable for cover against blender blades. The bottle is due to their concave shape well in the hand, and the small handle on the lid is really convenient if you are carrying the bottle around with you. The size is also good sized, neither too large nor too small. The review of the safety mechanism shows that the mixer is only rotate when the blade assembly is firmly screwed into the bottle - as it should be. A small downside - though not seriously -. Represents for me the sealing on the cover when you open it to flourish, it can be easy to see that the smoothie afterwards finds himself in places where you would not have him. Furthermore, the drinking hole in the cover for something more coarse smoothies is too small. So if you want it a bit throaty, then the smoothie must first decant into a glass.
But otherwise a nice device, what a motivated to take his vitamins every day to the office, and therefore a strong buy recommendation.
