[EricH]

Originally Posted by Katie_UPS

Although simple, you will lose the ability to change your robots orientation in relation to the field, which may pose a problem depending on the game and how the rest of your robot is built.

Not necessarily. If the drive power is tied 2-and-2 on the sides, or each module is individually powered, it shouldn't be terribly difficult to program a mode where the swerve drive turns like a tank drive. As a matter of fact, the OP was asking about this very power setup.