I will admit that I buy items based on design AS WELL AS efficiency. The Dyson was rated well, and I was tired of big, clunky, ugly, short-lived vacuums. So I bought this 14 lb, "animal", unusual looking vacuum. It performs PERFECTLY, empties its load of cat hair EASILY, stores nicely and can be easily carried between floors. I have found no defects or problems. However, it does seem awfully delicate, and so light. I am hoping that the new materials used in products today are light but sturdy. I have used my Dyson for over a month and it is still a dream. I did get the extra warrantee as I bought a refurbished machine. But you can't at all tell that it isn't brand new and perfect. This is my second Dyson. I bought the "stick" vacuum (no cord, battery charged) for my vacation condo. It is working perfectly after almost a year. Small dirt containers, but not a problem for me. In both houses I vacuum wall to wall carpeting, large throw rugs as well as wood and tile flooring.