How does the Dirt Devil I work? I have a dog so I am contained by the market for...

I have a dog so I am contained by the market for a virtuous Vacuum that will pick up all the hackle. I read some reviews and it seems similar to a good vacuum, but you never know. I am hoping to take some feedback on this.
Answers:    My brother has a hotel / restaurant.

They enjoy gone through only 3 Dirt Devil Poratbles surrounded by 30 years...

They use them to clean the banister top and countertops and the billiard table tops.

They can't be too bad beneath that kind of wear and slit.

And the billiard tables enjoy to be CLEAN!... because they hold tournaments there.
I own a Dirt Devil and I love it!! I have 2 cats that shed alot, my ending vacuum only last 2 years (it was not a Dirt Devil) because of adjectives the hair.