OK, I've owned 2 Sharks and a Swivel Sweeper, all 3 were Cordless vacs, and this Eureka cordless vac beats them all hands down, period, bar none!  It's well constructed and isn't loud and noisy whatsoever like corded vacuums are, the sound is more like a hum. The dirt cup is easy enough to empty and rather than just shake the dirt off the filter I use a hand brush to get the filter good and clean. I can vacuum approx. 500 sq ft of carpet, which is the amount of traffic area in my house, then when I'm in the last area the battery starts waning so I'd really like to see Eureka make a longer lasting battery.  That aside though I recommend this Eureka cordless vacuum highly!