Update - A year and a half in, and I still love my Nutribullet! One important hack though - I found out by accident when the O-ring came loose while blending that it gets really gunky up under there. So I started popping the O-ring out and cleaning the actual ring and the channel underneath about every 2 - 3 days, using a stainless straw cleaning brush (kinda like a pipe cleaner). Then, you have to get the O-ring seated properly back into the channel, which isn't always easy. While this solved the problem, the process was kind of a pain. Until ... I forgot to put the O-ring back in one morning and discovered that you don't even need it! As long as you don't overfill the cup and make sure the lid is on TIGHT, it doesn't leak at all. So, I just ditched the O-ring completely. MUCH easier!I just unboxed this and tried it for the first time this morning. So far, I love it. I've been using a Ninja to make morning smoothies for several years. With the Ninja, it was hard to get the lid/blade assembly seated properly, the cup is small so I had to do the whole process twice to make a smoothie for myself and my husband, and it's loud. Also, despite blending for a LONG time, the smoothies were still kind of "chewy." This new Nutribullet is quieter and more powerful, blends the ingredients into a smoother drink, and best of all, with the 32 oz cup, I can make 2 smoothies worth at once. Between the extra power and the bigger cup, it's SO much faster! The Nutribullet is everything I hoped for, and more.