The drawback to such improvements is the increased weight, although lighter and more efficient modern materials go a long way to mitigate encumbrance. User mobility is decreased, but this is usually seen as a good trade for the extra protection provided. Additionally, no special training is required to use battle armor--a common limitation with more advanced powersuits. For this reason, battle armor is favored by mercenaries, security firms, and small armies who may not have the funds, time, or training to make use of more advanced models.
Although modern battle armour is widely employed throughout the galaxy, it does little to protect against extreme environmental hazards, such as the arctic climate of Hoth or the baking heat one would encounter on Tatooine. For these types of conditions, specially designed survival suits are still regularly employed.