Litmus is a robust tool for email marketing -- but like any tool, you need to be sure to invest your time and people in its use

Litmus was used to check our templates for readability across various devices and email platforms, especially in Outlook, but also with some of the more obscure platforms that some of our regions' contacts still used. Additionally we used it to check for inbox placement for some of our more important corporate messaging to larger audiences.

Litmus is a trusted source of information in its articles and other content offerings, but we did/do not use reporting out of Litmus to guide any strategy at this time--we do not have all our marketing team using Litmus. In
my previous work, Litmus helped to establish standard email templates to ensure
that our emails consistently rendered well across all devices, thus allowing readers to
concentrate on our marketing messages.

We do not use this feature--again due to the limitation of adding specific number of users without the expense going through the roof.