I bought this as a backup for our Hamilton Beach commercial drink mixer in our fast food restaurant. So far, it has done a great job and is much more economical than the Hamilton Beach. We don't really use the timer function, but the variable speed works well and is really quite fast. There is a switch in the cup latch, like most commercial mixers, so if you use the stainless steel mixing cup, you can just latch it in place and let it mix away. We mix our shakes right in the Styrofoam serving cup, so we put a stainless steel mixing ring on the cup for strength and stability, but you can't latch this combination in place. The speed knob on top can be pressed down to manually turn the motor on and off which is the way we typically use it. I have used a number of other Vevor appliances in our restaurant, and my experience is that they sometimes fail prematurely. So far, this gets a five-star rating. We will see if it deserves it long-term.