OK, I've played with my new ROCKET DELUXE PRO PET HV 322 66. I've tried all the attachments, power floor nozzle, dust-away hard floor attachment with micro fiber pad, pet hair eraser, mini motorized brush, dusting brush. Observations, first it is VERY quiet, far more so than the Kenmore Blueberry and certainly the Kirby. It is not overly heavy unless you use it over head. Dust cup a breeze to empty. Seems to do a good job on carpet, I will test it against the Kirby soon. So in closing Dysonman is wrong about everything concerning the Shark.