If you're working in Ember there isn't really a use for anything aside from the ember-cli, the community is putting its weight behind it and other tools will be

If you're working in Ember there isn't really a use for anything aside from the ember-cli, the community is putting its weight behind it and other tools will be lacking in integration. That said, I've used Webpack lately and Grunt in the past and I've really liked the way Webpack does things.