We bought the Dyson V11 in January and my husband thinks he has a new toy. He has been using it every second day and just raves about how good it is. He has exhausted areas to clean !!! I have used it and find it is more powerful than our last Dyson cordless and our Dyson Upright and so much easier to empty. Because it runs for up to 60 mins on full charge you can vacuum the whole house and the waste capacity is great  I did read some reviews prior to purchase and was worried that the weight would be a problem but to be honest I find it light enough to manage a full clean. We would certainly recommend the V11 to clean animal hairs effectively as we have a collie who sheds quite a lot !! Super machine