This plugin does what it says it will do - and the Premium version is great for custom post types. I had hoped clients would be able to use this plugin to manipulate custom columns on the edit page, but it's a bit too complex for that.
Be aware you must modify the functions file in order for WordPress to actually recognize the custom fields you want to add (relatively simple) - then this plugin allows you to do the nifty work of selecting how you want the content to display on the post edit page.
The only reason I give 4 stars and not 5 is I would like to see support for filtering by custom field built into this plugin.
It's an all-around great plugin!