I like that I can use the API to send out emails to my subscribers, it helps me to save a lot of time. I like the way it helps me to send out emails to my subscribers, it helps me to save a lot of time. I dont like that it is not cheap to use. I think it is very expensive to use and I am not sure if it is worth the price. I am trying to use the api to send out emails to my subscribers, it helps me to save a lot of time. I like how easy it was to integrate with our existing email service provider (MailChimp). It's super fast, reliable, secure, & has a very helpful support team behind it! Can't think of anything we dislike about Unioe Mail API so far. We're using this API in order to send out newsletters & promotional emails as part of our customer communication strategy.