Centrify for Active Directory Authentication

I am looking to integrate several new Linux servers with Active Directory to make user management easier for me and stay SOX compliant. Has anyone ever used Centrify for AD authentication on Linux systems? The Express edition is free surprisingly and the install is pretty simple. I've just never heard of anyone using it before and I'm a little nervous about pitching it for our production servers to management.

I've been looking at using it instead of going down the path of Samba/Winbind/Kerb. Any recommendations?