This has been excellent purchase, use it for smoothies, making our own salad dressing. No issues with leaks, purchased 18oz cups and will purchase 24oz cups. Very happy with nutribullet.
My GI doctor put me on a no carbohydrate, no sugar diet. That means no cereal so now i use my bullet to make a healthy breakfast. Drawback is tightening blades to the cup. Need strong hands.
Wife & I used it 2x/day ,everyday for kale smoothies. Lost weight. However, blade assembly needs improved bearing seal. Common problem. Unit got very loud after 4 months of daily use. Vendor replaced unit. Otherwise great device.