We have had the Dyson Animal for a couple of years & I LOVE IT!! It almost killed me to spend that much on a vacuum but it was worth every penny! We have never had a problem with it, I clean out the filters & cut the hair off the spinning brush (no idea what that thing is called!) about every 6 months. We have never had it lose suction just like it says. We got it when we had our boxer & it grabbed those short hairs right out of the furniture. Now with Sam it does a great job on both hardwoods & carpet. I now brush & "furminate" Sam in the carpeted hallway because I got tired of chasing that bundles of hair around the yard when I brushed him outside. I use the vacuum to clean up the carpet & get all the hair off of me & it's never clogged up.
The only downfall I see to this vacuum is that it's too tall to reach under the kitchen cabinets; we have to use the wand. Also it's pretty heavy going up and down the stairs.
All in all it's a great vacuum! I would spend the big money to get it again...& I'm pretty cheap