The editor is very clean stylistically and looks great on all devices. There are a lot of options that allow you to customize the look-and-feel as well as the behavior and tools available. The documentation is sufficient to get it working pretty quickly.

Almost all the necessary Rich Text Editor Tools available. Option to make the floating toolbar as well as fixed Toolbar. Easy to extend module to build your own required module. Handle cross site scripting and js injection based security issue automatically. WYSIWYG Preview option helps the user to review the content while content is being created is a extremely helpful feature. Out of the box video provider support such as youtube, and very easy extensible feature help us add more video providers. Which removes the need of adding embed code which is generally more tricky for non developer user where as just coping the URL is very simple for users. Image resizer option is very helpful for on the fly image resizing based on container.

Froala is really easy to integrate into your product AND customize. On top of the continual development that keeps introducing new great features, it's super stable.