So, I've had this appliance for the better of 60 days now. Each use proves the highest quality and the smoothest smoothies.  I have used flax seed, oats, nuts and the technology  designed to ensure the smoothest outcome is true.  This blender is very easy to clean immediately after use  and if you happen to leave it until later it is equally as easy. I haven't found if it's dishwasher safe so I have not tried. Very satisfied with purchase.