I like how easy it is for me as a user/customer or even developer using this platform can easily integrate with any third party applications such us facebook messenger etc., It also has an excellent documentation which explains each step very well so there are no issues at my end regarding its integration process in other external apps (facebook).
Nothing much but would love if they add more features soon! Would recommend anyone who wants ease-of use, best integrations possible without having multiple teams working together while developing one single app. We were looking out ways where we could seamlessly connect our internal chat bot within different channels including Facebook Messenger & Instagram through WhatsApp Web App - This was what finally made sense since most people today prefer chatting via messaging apps rather than calling over phone lines due to COVID19 crisis.