How does a corded stick compare with a cordless one?

A corded stick keeps full suction the whole time it is plugged in and never needs charging. A cordless gives you freedom from outlets but loses power as the battery drains and needs recharging between runs.

Is it good for stairs?

The stick format and light body make stairs easier than a full upright. The cord means you need an outlet within reach of the staircase.

Can it clean carpets as well as hard floors?

Stick vacuums of this type handle low-pile carpet and hard floors for surface cleaning. For deep carpet cleaning, a full-size upright or canister does more.

Shark stick vacuums are bagless, so you empty a dust bin instead of buying bags. The bin is small, so expect to empty it often during longer sessions.