I use the DC44 more than my main Dyson now. I got it free for trying and reviewing it. Once a week, I run the main Dyson over the sitting room carpet, as that gets most use, but the rest of the time I use the cordless. It picks up dog hairs and is great for reaching under furniture and the kitchen table. I can vac downstairs, two bedrooms and the landing in ten minutes, as it's so light.
It's the best vac I've ever had for doing stairs, and I no longer have to lug a heavy vac upstairs. Worth having!