I personally don't use filters very often. Maybe I'll use 1 filter to make an object feel moire cartoony, or less blurry, etc. I find most of the filters to be stupid and unprofessional unless you modify the settings to an exact setup.
Do you use filters? If so, do you use the built in ones or have you downloaded others?
Do you use filters? If so, do you use the built in ones or have you downloaded others?