The only problem I guess is that the last release was over three years ago, and some bugs are starting to show (saying nothing of any added features). The pace of the npm environment is moving so fast, that it's sometimes hard to even get a project up and running.

Things feel a little stale.

For example (from this week of my adventures with Foundation for Emails) Google Fonts almost sort of work for email, but there's just no real easy way to tell this framework to use them, or call any web font.

It's pretty good. A few clients are still PITA (looking at you, Outlook 2007 and Yahoo mail. You still have to do jump through hoops for accurate background images, or fancy things with borders.

The actual markup MJML generates is terrifying, and can be very large payloads. A simple hero graphic, some styled body text, a few buttons, and a footer was around 60KB/message. It got gnarly for us as our MTA had a max-payload size per API 'send' call (Mandrill) so our max send rates were partially constrained by MJML's fat markup.

But totally worth it to not spend _as_ much time satisfying the mail clients of the world.