I am actually very happy with this best electric shaker bottle that I purchased over a year ago. Great for mixing my protein shakes and creatine. If I happen to forget to refill the main bottle, I like the extra containers for my pills and extra doses of protein.
My big problem is that the lid is broken. I am very gentle with them when using the electric shaker bottle. But once during a workout at the gym, the shaker bottle got smashed by a dumbbell I threw away because I was exhausted.
I continued to use it for a while, but recently switched again because I really like this protein shaker bottle.