What I like about them is that they really give you what they promise. I have a Premium trial with them for 2 weeks now. I've played a lot with the tools. Still, to decide will I commit to upgrade. All in all, everything works, but take care - hosting is not powerful enough to stand really high traffic, like 1000 visitors in a minute. This is not the place where you will host your high traffic landers to run with Push or Pop. It is more for funnels for people who use FB Ads, Google Ads, or Native, or SEO there you don't get that much traffic. For that it is fantastic! Or for bloggers, cos with Premium you get unlimited email marketing. However, you better use DOI, because with SOI you would need to explain why you want that? But, not a big issue, if you are giving value people would anyway confirm subscriptions. That is why I would probably keep this tool. Because I think to start a blog about aff marketing and promote Aff Lift Forum on it.
Also, they have many many cool features, like FB chatbots, with unlimited subscribers, Website Chat Bots, you can collect Push subscribers on your blog, etc. etc. You can get a trial and test do you need BA. That's good. If you do, for the money they charge you get way more then anywhere else, that's a fact!