Excellent module, works like a charm on all browsers.
Once I found a bug that it didn't work correctly under ssl connection the support team fixed that for me in a couple of hours. Highly recommended!!
I didn't have rated many components in JED but for this excellent piece of work I really found time to rate it as a great product, really helpful for virtuemart and support is just great exist there even Sundays.
I was waiting over 6 months for this release of Joomailer but it worth every penny.
It works exellent with Mailchimp and gives many new functions to the Joomailer platform.
It worth a try if you don't have used that yet.