Built-in CMS and control panel The CMS allows a user to change the content of a website on the fly, click and change a text or a picture. Control panel allows the user to change almost about anything on her website.
Multi-tenancy platform The platform can host many websites managed by individual users.
Flexible web UI As a web developer you are not restricted to any UI framework while building your website.
Files with multiple bodies Each file can have several bodies attached to it. One can keep the original photograph image and the scaled down versions of the same file.
Cache Caching makes the things go faster.
Database resources Images, text, templates, URLs and other resources are stored in the database and can be changed on the fly.
Solr search engine Any search may be backed by Solr which makes it a lot faster than a database query.
Stateful design The platform is stateful thus horizontal scaling is a bit harder.
Backend is Scala Entry level is high as Scala is hard to comprehend.