After using it for several months I found that it is not durable at all. When I place the blade on the cup and put it on the motor everything seems fine. Until I turn it on and then the rubber gasket in the blade lid often comes off and it makes a lot of noise. Often when I engage the motor it jerks and unscrews the blade lid making a huge mess. So I screw it on super tight to keep the washer and lid in place. Then I can’t get the lid off. I’ve had it with this bullet, and I’m shopping for a different brand.I use it everyday for a breakfast smoothie. I use a lot of ice. It handles it no problems. I love the stainless steel cup. I don’t think it helps to keep much colder than the other plastic cup, really. I do feel like it’s sturdier. I expect it to last 20 years like the one it replaced. It’s good value for money.