Customizing the interface/branding is by far the best - its actually worth it and super professional looking. If their branding was better they could cater to larger orgs. They also have GDPR - given they probably have a USA base CCPA is also a good idea to include and some kind of opt-out button for the user - keeping reglardless!

Just trying to figure out the articles limititation to buiild a solid knowledge base for users