Although the hours are long and often irregular, most sales representatives have the freedom to determine their own schedule. Sales representatives often are on their feet for long periods and may carry heavy sample products, which necessitates some physical stamina.

Dealing with different types of people can be stimulating but demanding. Sales representatives often face competition from representatives of other companies. Companies usually set goals or quotas that representatives are expected to meet. Because their earnings depend on commissions, manufacturers' agents are also under the added pressure to maintain and expand their clientele.