The only issue that's been biting me when using ActiveModel::Serializers and AngularJS is that we must manually return the json with the root: false option set, otherwise the AngularJS $resource provider doesn't work correctly.
If it helps you can make that the default for all your serializers, by doing something like this in an initializer:
ActiveSupport.on_load(:active_model_serializers) do
ActiveModel::ArraySerializer.root = false
ActiveModel::Serializer.root = false
end
By the way, ActiveModel::Serializers is part of the Rails API project[1], and we'd love some thoughts on how to make it work well with Angular.
1: https://github.com/rails-api/active_model_serializers