Both are a lower cost way to get the look of real wood, and are less susceptible to both imperfections and warping than solid wood, coping well with fluctuations in temperature and humidity. However, the trade off is that both imitation wood and wood veneer are less durable than their solid wood counterparts, and will show wear and tear more obviously - whereas with solid wood furniture, wear and tear often actually adds to the natural patina.
Some of our furniture ranges use both solid wood and wood veneer, offering durability just where you need it - for example, a solid wood table top paired with matching wood veneer legs.