As a rails developer, I found Sails.JS to be quite promising. It's actually an advantage that it is opinionated. Looking at it on a enterprise/company (large scale development) level, Sails.JS promises consistency of code.
excellent presentation of javascript's backend space
LoopBack + any Front js are great
PPT presentation is not much clear... Especially code and pros and cons screen
Out of date video, the frameworks change a lot
@ArminMonirzadeh