I've had mine for a while. Use it in spurts. Agree with some other comments - the top seems to get "sucked"/stuck on and a bit hard to loosen sometime. It blends great though which is the main reason for purchase. Frozen fruit, fresh fruit, ice and fresh greens, (kale, spinach) come out great, very smooth. Some people mentioned it getting stuck. You do have to use sufficient liquid - that is key. Once I figured this out, it's all good. I use frozen fruit, (over ripe banana, mango, strawberries, pineapple) to make "ice cream". Not the healthiest, but using flavored coffee creamer, (coconut is a fav w. pineapple), with fruit makes a great frozen treat. The do-hicky. "actuator" ?, broke on large cup which is quite the bummer. I was improvising for a bit then just started to use the 24oz cup. The little white thingys are always stuck after use. I've solved issue by using a little thingy, (found in my junk draw) and pliers. Before use, I tap them to loosen them up. They then work when I put the cup on to blend. Not sure why they are sticking.