Shark HZ3000 Stratos Ultralight Corded Stick Vacuum

Yes, and it's what comes up most often. The HZ3000 is easy to steer, glides under beds and pulls itself forward on carpet, so seniors manage it comfortably. Shark lists it at 8.6 lb, which isn't featherweight, but that forward pull does a lot of the work.

Yes, in most homes. The Stratos Ultralight picks up well on carpet and hard floors, often filling the cup from floors that already looked clean. In one home the suction came across as only moderate. Shark's DuoClean head uses two brushrolls, one for carpet and one for hard floors.

More often in a big home. The cup on the HZ3000 is easy to empty, but it holds 0.75 L, and in several homes it fills before the job is done. A larger house can mean stopping to empty it more than once, so start each session with it empty.

Yes. The HZ3000 gets dog fur up from tile and rugs, including in a home with two large heavy shedders, and the brushroll stays clear of wrapped hair. The detachable hand vac takes over for fur on stairs and upholstery.

For most rooms, yes. The cord on the Stratos Ultralight is long, and in one small apartment it covered the whole place from a single outlet. Being corded, it never stops to recharge, which is the main reason to choose it. In a bigger house you'll still move the plug between rooms.

A foam filter. Shark adds what it calls Odor Neutralizer Technology to cut vacuum smells between cleans.