I'm loving Wagtail [https://wagtail.io] so far. There does seem to be one catch
though. It doesn't handle ManyToMany relationships
[https://github.com/torchbox/wagtail/issues/231] particularly well in the admin.
In Wagtail's defence, the problem is caused by Model Cluster
[https://github.com/torchbox/django-modelcluster] which Wagtail