At F1 Chronicle we use (and love) Keap(Infusionsoft) because although it has the nickname 'Confusionsoft' we find the simplicity of their drag and drop broadcasts for newsletters perfect for our team, which often includes VA's with little experience on the platform.
When we want to run reports, we're able to get such granular detail on people on our list, then tag and target them with either nurturing sequences via email, or with Facebook ads.
An often overlooked thing is deliverability, so using this trusted platform has definitely helped us to hit more inboxes instead of 'promotion' or spam folders too.
On the downside, it is a pain to set up products and order forms if you want to sell online products.