Bests & Worsts Reviews from Amazon

I got mine in February and the blade assembly started making a horrible noise just now in May, that's 3 months. They replaced the upper part of the unit for free and then told me IT NEEDS TO BE REPLACED EVERY 6 MONTHS!! that's $48.00 plus shipping twice a year. The following is the "care" guide they sent me when I called about the problem. Never run the unit for over a minute! Running the unit continuously for more than one minute can cause pressure to build in the sealed vessel (through friction of the rotating blades), and may lead to an eruption that may cause personal injury and/or property damage. If additional blending is required, run for short one minute intervals allowing the unit to cool down (for a few minutes) between each interval- do not use for more than 3 intervals. When blending, keep all ingredients under the MAX line. Overfilling the vessel can lead to leakage and pressurization which may lead to separation and can cause personal injury and or property damage. Overloading the vessel may eventually weaken the integrity of the blade assembly component leading to damage and improper functionality. Make sure that the blade assembly is screwed tightly to the vessel. If the blade assembly is not tightly attached to the vessel, the contents may leak into the power base cavity. Leakage in the power base cavity may cause the switches to become sticky, and over time, making it difficult, if not impossible, to depress and power the motor. Allow the motor to come to a complete stop (3 seconds) before lifting the blade assembly and vessel from the power base. ONLY use room temperature, cool, cold or frozen ingredients - never blend warm or hot contents in your NutriBullet. Never blend carbonated ingredients or liquid (including baking soda, any type of batter and or vinegar). We recommend replacing your blade assembly and vessels once every six months or as needed for Optimal Performance. Always check to make sure that the blade assembly gasket is fully seated into its recessed housing channel before each use. Periodically check the three tabs on the sides of the vessels to make sure they are not cracking, crazing, breaking or rounding (if so discard immediately!) We recommend washing all parts by hand and allowing them to air dry—do not place in the dishwasher. If you have any comments or questions, please call Customer Service at 855-346-8874 and we will be happy to assist you in any way that we can!