I want to review this plugin on WPMU DEV for potential clients.
This plugin is easily best of class for what it does. I've been with WPMU for almost a year and never once bothered with it because I didn't know it did 10% of what it does.
If you use custom post types, this plugin is the end all be all.
Great job by the WPMU developer that built this so soundly. It's reliable and includes everything you could need it to include for managing custom post types, including custom post fields.
If you are a theme developer/designer, you need this plugin. In minutes you can add TONS of customization for your client.
Furthermore, it's done right! CPT should be in a plugin not a theme. That way it remains when the theme is replaced.
I highly recommend this.