The best part is that it works! I have been using robly for over 3 years now in my business as well as personal email marketing campaigns (I'm not affiliated). It does what you need without any issues at all. There are many other products out there but they usually require additional fees or lack some key features like autoresponders which can be very important when sending emails monthly/weekly etc. If its free then why wouldnt we use them?? Well thats just me speaking from experience here haha :) Great product if used correctly!! You will see an increase in sales after implementing robly into your campaign planing process.