The overall efficiency of the product.

It felt a bit aggressive at first but I quickly got used to it.

Easy to use and as good as other more expensive products

Easy to use and very good quality

It hasn't got a lid that I can put on and go. The lids have an open lip so it is not possible to travel with it e.g take to work or to use after the gym. Its a shame I will have to look for a travel container around the same size so I can take my...

So easy to use, love it, I now eat loads of fruit.

I would rather the lids had no drinking hole.

healthy eating

Love the slim version as easy to take with me to work as nicely fits in cup holder, powerful enough to blend frozen fruits and ice. Used it as coffee grinder as well.

I would prefer if the cups would be from glass as plastic is scratched inside from seeds and fruits I blend.

Quite simply the best blender I have had and I have tried all the popular brands, this Ninja blows them away and it crushes ice !!

Just the right size, easy to use and clean

A bit noisy but I think they all are

Really easy to use. Lots of options for healthy mixes. Takes up very little room on the worktop and looks stylish.

Need to chop things first - not really difficult.

Compact, & easy to use