What does the company do well? Sales and trying to get you into their long term contracts while lying about their capabilities and service
What does the company not do well? literally everything - the platform is very glitchy not working on some major browsers at all, they try to lock you into long term contracts, their support team is slow and does not know whats going on, they are expensive. This is the worst email platform i have ever used, even beating out Aweber on that score.
What do you wish you had known about the company before using? Do not use this ESP they are a terrible platform in every possible way - if you want good alternatives would recommend Mailchimp wholeheartedly, also Convertkit is awesome although you will need IT to code in a lot of stuff which is standard on most ESPs.