It's best suited to be used with WordPress or other similar platforms out there (Joomla etc.). I would say that it can run both PHP applications & NodeJs application at once which makes development faster than ever before using the same platform i-e - CQ5/CMS7 stack! The documentation needs some work but still manageable enough as long you are familiar coding in general terms rather then specific language concepts like Java Scripting syntaxes like JQuery, AngularJS/Angular2+. There have been no major issues so far except minor bug fixes while developing new features where we did need help from their Support Team via tickets. We're solving our problems in an integrated way by leveraging multiple technologies such as Wordpress Plugins(Custom fields), Custom Fields / Views + Formatter API, Content Types along side Web services APIs + Services within one single framework.