I've had this for years and it is the only floor vacuum out there that picks up tumbleweeds of dog hair with ease.  I have 4 large dogs and have to vacuum my tile kitchen floor and hardwood floors throughout my home 3 -4 times a week and the suction power is incredible.  The only thing it does not do well with is tufts of fluff from dog toys.  They are too thick to get under the vacuum.  The back wheels recently fell off and before I realized it, the dogs were chewing them and I cannot find replacements for them.  I didn't know they even fell off because the vacuum still moved with ease without...