A huge problem with using a Yes/No boolean parameter in a conditional statement as a calculated value in a project is that null values do not get evaluated as NOT meeting the Yes condition. Therefore, when I have a Yes/No being evalutated in a conditional statement, such as whether or not a Yes/No parameter is checked to determine which room number to report for a door, each checkbox must be explicitly set to checked or unchecked. In the example of the door room number, as doors are added, they default to a null value, and the formula of the conditional statement doesn't treat the null as No when I want the conditional statement to only be true if the checkbox is explicitly checked.