Well...
I know they do have good carpet cleaning performance because when it comes to Eureka, they know how to make competent vacuums. However, I question its reliability if you use it throughout your house almost daily because most modern big box store vacs tend to have cheap motors compared to older vacs. However, just clean those filters as much as directed (or even earlier than directed) so the motor won't overheat and wear out too fast. From what I read, bag-less vac filters tend to get filthy REALLY quick.
I see that you own a Riccar Supralite and Kirby. How do you think this cheaper Eureka's carpet cleaning ability compares to those awesome vacs considering you like to use the Eureka a lot? I'm curious.