Review on CatchJS by Doug Layman

I like how flexible it can be, you have many different options to configure your app's errors reporting system (you don't need Log4js! or anything else).

The documentation could use some work as well - there are not enough examples out in web so far that show what each feature does exactly. But with little effort from our side we managed getting everything up & running within minutes of installing this plugin into one application where all previously used custom solutions were failing miserably after weeks/months trying :).