I have the Dyson animal as well. As for the beater bar not working on carpets, I vacuum my bedroom weekly and still fill the canister every time (2 cats, and the litter boxes are in the bedroom, so lots of cat traffic). The carpets definitely look clean after I vacuum them. I have a combo of hardwood and carpet, and the Dyson transitions easily. Going from using the base to using the wand is a little bit of a pain, but not really all that bad (my previous Panasonic was easier since you just pulled the hose out of the base and went to town - the Dyson is a little counter-intuitive but you get the hang of it pretty quick).