My fiance purchased my Shark IQ as an early Christmas present and I LOVE IT!  I have a German Shepard and a cat and needless to say the hair was becoming a nightmare.  Now I just launch the robot (Cinderella) around lunch time everyday and by the time I get home my floors are clean.  I love coming home and seeing the lines on the carpeted areas and not seeing hair all over the hardwoods. She even cleans under the beds!!!