I love this vacuum!  When I first got it, I realized that it was picking up pet hair and dust that my fancy-schmancy canister vac with power brush had left behind.  My carpets are cleaner than ever, because instead of putting off getting out the heavy canister vac and lugging it around, Oh! My aching back! , I whip the Eureka out and clean small areas, often. Because it is light-weight and fun to use, I usually vacuum a larger area than I intended, take it to another room, etc..  So my entire house gets done and it seems effortless.  The run-time is great in my opinion, although I haven't run the battery down in a single use to see how long it actually lasts before needing a recharge.  The extra battery is sufficient for my needs, and the stand-by time seems to be good as well.