Communicate Jesus

I've been using SendX for about 6 months now. Can't speak highly enough about it. I was looking for an alternative to MailChimp - it's easier to use, and with more features. I think most impressively, the support has been excellent. Never waited more than 30 mins for a response, and I've seen a constant stream of quality features added. Really recommend.

I'm a 1Password user. Any features here that make it worth switching over?