We just today purchased the cordless model and we are not sure what to do. Using the vaccumn the very first time on a small area rug 4 x 5. Suction was lost before we were finished. Couldn't handle the cat hair and now the roller is full of hair and filter as well. It seems the only way to clean it is to unscrew the bottom and remove the roller for cleaning. Any suggestions? We have a very cheap upright stick vacumn that has no problem with a bit of cat hair. Handles the hair without losing suction. We paid a lot more for this one and its truly disappointing.