I vacuumed my house with our old vacuum (which I thought was quite good, just a pain for getting hair wrapped around the brush) in the morning before this vacuum was delivered in the afternoon.
When this arrived, I couldn't resist giving it a whirl. But oh my goodness. It was both disgusting and amazing all at the same time. The amount of dirt if lifted from carpets that had already been vacuumed that day was incredible! My carpets looked a different colour!
Got carried away and did the whole house. My daughters allergies haven't been nearly as bad, the stairs are WAY easier to vacuum because of the removable part, and the tools are great too. It also seems to deal well with the dog fluff and human hair.
Well impressed!