I like that it gives you an option of creating your own templates to customize newsletters for different audiences, segments or markets without any technical knowledge required! The free version doesn't support all features which are essential in my opinion but there's no problem with paying more money if needed because we can always go up until our business requirements require us to upgrade. It has been very easy managing and sending out emails using this tool. Not much so far since we started working with them. A few minor issues here and then they were addressed by their team within 24 hours. We're able to send mass email campaigns as well as track open rates/ click throughs etc when necessary. Easy to use, easy for non-technical users too understand what it does in terms of features etc., great support team - even better when you need them! The UI could be improved by making some things more obvious (i'd like an option where I can see at least how many people sign up/unsubscribe). We are using stratosmngr as our email marketing tool across multiple channels including newsletters & social media campaigns with very good results so far!!