Personally I found it a bit strange that when I click any item in a table in the backend, it opens a 'Quick Edit' in stead of the expected single-view-screen for that item (like how the WordPress admin functions).
But I can get used to it.
What I think would improve the usability tons is adding two little tweaks to the Quick Edit screen;
Add an "Edit" (and maybe "Delete") link on the right side (the same as in the "Actions" dropdown)
Bind the Enter key to the Save button for quicker inline editing
It's quite bothersome that if I want to edit or delete an item, I have to click open a submenu and if I don't click completely right the first time, I have to 'deselect' the item to get out of the Quick Edit and try again. It would be logical to add the same functionalities of the "Actions" submenu to the Quick Edit screen.