before writing this review I checked my mail and found out my account with coffeecup was created exactly 10 years ago, on april 2006... so I can say Hi have been using their visual web design tools for a while...
RED (responsive email designer) is just like coffeecup others tools, no coding, easy to use and quick to learn the basics.
I used to hand code html emails and newsletters, which was never fun, but with the need for fitting them on mobile, tablet or desktop it became a difficult task, RED makes it easy, create breakpoints for each layout add elements and you have the mail ready for sending and viewing on different platforms.
you do have a good control on the layout with CSS3 properties.
and as with any coffeecup program I ever used, you get a fully functional tria.
I find RED not as intuitive as it could be, but still, doesn't take long to master.
some issues with RTL languages on a LTR mail
Personal version could be a little cheaper imho.
they post the product roadmap, which is nice, but some features seems to stay on the map...
try the free trial, easy to install and get started
creating newsletters that fits mobile as well as desktop with minimal effort