Resurrecting this thread (which I actually started and didn't remember). So we got that Dyson Animal less than 2 years ago, and we have actually not been very pleased. I really like the small size, weight, and maneuverability. And it does fine on the hardwood. But it has been far less than ideal on our carpet. I don't know if the problem is the type of carpet or the vacuum, but it simply leaves behind WAY too much hair (immediately after vacuuming if we sit on the floor we're still covered with dog hair).
Again, not sure if it's the Dyson in general, our particular Dyson, the carpet, or our dog's hair is just extra crazy or something.
The Dyson is less than two years old...and I don't think it's broken. So not sure there is anything to "repair" (it does work on wood fine).
Read the AMA with the vacuum repair guy and some other recs, and may try a Hoover?
I don't even care that much about the dog hair, but since we host a nanny share at our house, the nanny mentioned it to us today about the vacuum not working.