I think the cup is great. It makes it so convenient when mixing. I like to freeze my collagen shakes that I mix in coconut milk. This makes it so easy to do that. I would’ve given it 5 stars but I took away one point for the shaker ball. If it had holes in it, it would mix even better. I love the color, and it looks super neat with all my different colors together. The cap is super convenient because I can easily drink it right out of the shaker cup. I also love that the ball is plastic instead of metal because sometimes before freezing I forget to take out the shaker ball, and I have to put the cup in the microwave for a few second to start thawing quicker. I wouldn’t be able to do that with a metal ball.