If you love baking pies, pastries, cookies, or Napoleon- this is a must-have item! I hate how hard it was to break out and mix in cold butter with the flourby hand. The KitchenAid Pastry Beater takes it to a new level. All you have to do just add ingredients to the mixing bowl and it is done. The dough comes out beautifully and nicely mixe. It saves time and your labor. The tool quality is great( just as every kitchen aid tool), it will last forever. 
I also tried using it for mashed It potatoes and turned out amazing.