I only reviewed it quickly, but I think they should be using the "then" pattern of promises when saving and transitioning. So this: this.get('model').save();

I only reviewed it quickly, but I think they should be using the "then" pattern of promises when saving and transitioning. So this: this.get('model').save(); this.transitionToRoute('users'); Should be: var controller = this; this.get('model').save().then(function(model) { controller.transitionToRoute('users'); }).fail(function(error) { //Feedback for the user });