Product details consistently advise rinsing cartridges clean after use.
Many refills include a lubrication strip (often called a Lubra/Lubrication strip); some lines list larger strips for extra glide, and a few note lubrication placed before and after the blades or a touch of aloe.
Many cartridges include a precision trimmer on the back for hard-to-reach areas and styling, and some descriptions also note microfins or microcombs that prepare and guide hairs for a closer cut.
Review summaries most often praise shave performance—smooth, effective shaves with fewer cuts—and note good quality/build; some reviews also mention value, durability, and delivery.