Specs are quantitative aspects of the option such as the price
Pros
Pro
Calipso runs with MongoDB and Express in the background
Calipso uses MongoDB through Mongoose as a database and it runs on top of Express, the most popular framework for Node. Making it very simple for anyone experienced in Express and used to working with Mongo.
Calipso delivers it's functions by using a modular approach. All of the core features that you would expect from a CMS, excluding theming and forms are provided by modules.