Durability

• I have owned this Dyson model for over two years
• Vacuuming for a household involving three girls (ample amounts of long stringy hair), 2 dogs, and a cat.  Although the vaccum has never lost suction, I noticed this past month or so that it was not collecting hair from deep within the carpet as effectively as normal.  I flipped over the vacuum, easily detached the carpet brush, and cleared out enough hair to have filled up the entire canister.  Over the past two years, the vacuum continued to work effectively despite the knots of pet/female hair/string/etc. clogging the brush.
• Vacuum a...