So far I’m happy with Sender

Customer service was great – Skylar answered all my questions and it didn’t take long to resolve all minor issues I’ve had. The setup was quick and easy, I had no problem with DNS instructions. I switched from MailPoet and so far I find Sender a lot easier to navigate and a better value for the price you pay. A few minor things need improvement (e.g. workflow test doesn’t work properly and the delay in sending automation is set to 1 minute but it take good 20-30 minutes to receive it). But given the price and the functionality of this plugin I think these are minor issues that I can put up with.