As someone who has worked in email marketing for over five years, I can say that for me, only one aspect of the mailing service is truly important. It's the deliverability of emails. It may sound trivial, but it's on this basis that a proper analysis of any marketing campaign can be conducted and conclusions drawn. Additionally, the detailed statistics provided by UniSender also matter, as they show all the results of the work. At first, the interface seemed a bit cluttered, but you quickly get used to it. I appreciate this platform for its effectiveness. I have something to compare it to; I've used other services, but I chose UniSender.
