Postal's platform is flexible and allowed us to justify the expense of the platform, and base our volume expectation to build an ROI model for direct mailing.
I like the ease of use and UX on how to send gifts to your customers. Postal.io integrates with Amazon's marketplace, the possibilities are basically endless on what you want to send out. Ex: One of our customers loves to play golf, so instead of sending him some generic gift, we were able to personalize a gift to show how much we cared and paid attention to him!
The ease of setting up a campaign, importing all materials, and clicking a button while they take care of the rest! And the ability to tracking. I love looking through the numbers and seeing how quickly everything gets delivered.