For some plugins integration just means visual integration (i.e. window-manager integration). And, to be clear, this one is not poorly-implemented. It's based on a very powerful web-application toolkit called PhosphorJS written by very experienced UI developers.

For other plugins there is very nice integration so that you can have interactions in one plugin update outputs in another and vice-versa.

The ease of creating a connected ecosystem of web-applications connected to your workflow is one of the powerful aspects of the new platform.

What would great integration look like to you?