I am interested mainly in collecting the email addresses, managing the subscribers, taking care of emails not used anymore, bounces, etc.
If I keep the plugin only, I don’t have the managed system. Freshmail is mainly for Polish market and does similar things to the global email programs for much lower price.
Also with sending emails I would like to use Freshmail, since it also shows the preview of the emails in most of Polish client email providers. So I can edit the newsletters to get the look I want in different emails in the browsers.