Hobo can even create an autocompletion for relations from the has_many side of a relation.
This in a quite ugly hack ... but its working ...
It is actually quite easy to enable inline editing in Hobo using Clickeditor, which is awesome. It is also possible to use Ckeditor in Hobo, which is awesome as well.
There is even some integration between the two, so clicking on a cktext-attribute unhides the already embedded CkEditor. But unfortunately, you can't save, there isn't even a save button.
I like the ability to have draggable and sortable lists via acts-as-list in Hobo, but I needed more:
I had a hierarchical structure, like a category tree, that needed to be sortable. I wanted a drag and drop interface. Furthermore the updates should be immediate via Ajax. Because this can take a while for huge trees, the user should be informed clearly, but unobtrusively, when update started, when update suceeded and when it failed.
I found Hobo to be compatible with the Ancestry gem and it plays nicely with Nestable.js and Messenger.js and it doesn't break the Bootstrap look and feel too much.