Buyer beware!
At first, the Kitchenaid KSB560 was all the ratings said it would be- a sure thing, an excellent product. Our smoothies were fantastic, smooth and creamy! However, a few weeks into usage the unthinkable happened; it started to leak from the bottom. We tightened the blade, but after several uses it loosened again and leaked-- and still does. We are now destined to repeat this cycle. We should have sent the machine back at first opportunity; now we must endure.