I've had my Dyson a little over a year now and I wouldn't trade it for anything else!
We've had every kind of vacumn from the cheapies to the very expensive and I have to say so far this is my favorite!
With three very, very hairy dogs (yes three, Bon's just as hairy as the girls...the hairs just shorter) it really does the trick.

I empty mine each time I vacumn.

Happy vacumn hunting!