Hi ImpellervAgitator,
If you're looking for a washer that's gentler on clothes, an impeller is usually the better choice and also gives you more space for large items like blankets. An agitator moves clothes more aggressively, which some people prefer for heavily soiled laundry.
As for washer lifespan, both designs are built to last. Regular cleaning and maintenance are the biggest factors in keeping your washer running well. For maintenance tips, see pages 50-55 of the user manual: https://downloadcenter.samsung.com/content/UM/202606/20260616083954598/OID67143_IB_WA7100C_EN_CFR_MES_260609.pdf
Thanks for your question.
Glaiza
Samsung Care