I don't know anything about the Hoover Wind Tunnel, but I'm happy to share my story.

Rudie will freak out the minute I get ours out of the cupboard and I won't see him for the next few hours. After that I'm usually not very wanted around him. I use it every day and sometimes twice as we have wooden floors and Cookie is shedding very badly after we had her neutered.

Eddy doesn't mind it at all. She even sits on it when I leave it in the livingroom and starts to wash herself. Or she won't go out of the way when I need to do the couch.

My mom had a cat who liked being hoovered when it wasn't on full power.

I agree on the Swifter. I use it too every now and then, just that the dog recently started biting it, so I'm back to the vac.