Mileage varies. I my experience AngularJS works well with quality teams who come into the Javascript ecosystem with a front-end / design / HTML background. The

Mileage varies. I my experience AngularJS works well with quality teams who come into the Javascript ecosystem with a front-end / design / HTML background. They get the markup-based systems; it's less of a leap. I can think of one team in particular who had a horrible time with Ember, but took to Angular very quickly. The application speed thing, I think, is non-issue now that people have figured it out and written a lot on the topic. There are a lot of good articles out there that explain very clearly how not to write slow AngularJS applications. I even wrote one myself back a ways: https://www.exratione.com/2013/12/considering-speed-and-slowness-in-angularjs/ https://www.exratione.com/2013/12/considering-speed-and-slow... There are definitely other issues worthy of attention, such as learning why you don't factor your application into directives everywhere, learning to avoid all the normal global variable issues with $scope, and the very mixed quality of the documentation - sometimes good, sometimes encouraging outright bad design choices, sometimes lacking very necessary detail.