This is a review of the Ninja Professional Blender & Single Serve. BL660 . LINK TO NINJA: http://amzn.to/1fdIfUA
I'll test this by crushing ice and comparing it to a standard Oster blender. I'll also blend chunks of vegetables and make a smoothie in the single serve. First, let me give you the basics about the Ninja. It has 1100 watts of power and weighs about 10 pounds. It's about17 inches tall. Now the height might be an issue for some kitchens with lower cabinets, this might not fit under the cabinets for storage. The pitcher holds 72 ounces and is made of polycarbonate plastic, so it's not heavy. The single serve is also plastic and bpa free. You can make a smoothie and drink it out of the same container. It has three speeds and six stacked blades on the spindle. Just look at the blades, they look seriously sharp. The parts are dishwasher safe. The blades are really sharp so be careful when turning the pitcher over because it slides out easily. Suction cups on the bottom so it doesn't move around. The Ninja won't blend until the lid is locked in position.
I don't think it's fair to compare the Ninja to an expensive Vitamix or Blendtec. The Ninja is about $140 and is a good value.