Did rails development for 6ish years full time, about 6 months ago I joined a startup using Django. The admin is QUITE nice, its very flexible in terms of models but as well as templates, allowing you to override specific blocks from a standard template, rather than copying a template.

This looks like the very beginning of the Django admin, something that Rails could seriously use. Admin functionality isn't meant to be user friendly, its essentially a CRUD system that mimics your schema.. something that would be quite handy in Rails. While I've always painfully just created my own admin for every project, I've used https://github.com/activeadmin/activeadmin a few times, and known others who have as well. It's great, but again not nearly as simple as Django.

Personally I would love to see a Django Admin style tool for Rails.

Of course, you do kind of get this with Rails Scaffold, but its not admin, its all user facing as its produced with the model and controller, far from ideal.