Managing conditional fields is straightforward and a great feature of the component. We use it primarily to provide an "Other" option at the bottom of a dropdown that triggers the display of the "Other" amount field. Unfortunately if you fill in the Other field and then change your mind and select an amount from the associated dropdown, the Other field although hidden still contains the entered value, which has no business being included to the DB. To solve this we use the PHP $_POST modification scripting to test these values and remove the extraneous "Other" values if they exist.

What would be really nice in addition to Conditional Fields is to also have Conditional Values, which would operate the same way. So basically you'd {Set|Remove|Increase by amount|Increase by percent|etc.} {this field} when {that field = value}, or some such system where extraneous value could be removed and other values could be manipulated in various mathematical or textual ways.