title: What is the advantage of using a third party IoC container in ASP.NET 5
body: <p>IoC is now built into ASP.NET 5 from the ground up. What is the advantage of using a third party IoC container like Autofac or Unity if any?</p>
  
  <p>Would using a third party IoC container give better or worse performance? Are there other really useful features which the built in IoC container does not have?</p>
  
  <p>I can no longer see a benefit of using one but want to make sure I'm not missing something.</p>