The ease of integration with other applications (in this case Salesforce). This is useful in all our marketing efforts as well since we can quickly get data from their customers to use within Marketing Automation tools like Marketo/Infusionsoft etc without having them log into another system themselves or pay additional fees! I wish it was more granular than one day per week but that's not too much hassle either once you set everything up correctly - just make sure there are no overlaps between