Ability to upgrade directly from the free plugin.
Only have to code 1 version of my plugin, freemius takes care of generating a free and premium version based on licensing logic.
Customer data and cart abandonment recovery.
Less headaches related to billing and licensing and less stress on our server
Takes care of VAT tax for European customers
Ability to offer free trials
Nothing important to dislike!
Some minor improvements can be done to the dashboard to have a global view of all plugins stats which is already on their to do list!
Waste less time on deployments
Less headaches related to billing and licensing.
Increase sales and upgrades