In a normal work setup, normally share permissions are just set to everyone and you limit via ntfs permissions. So not sure what a users list on shares is going to get you?
As to quotas - there lots of different ways to set that.. Did you set by user?
Here is a good tool for dumping access permissions, this might help you.
And here is a tool that you could use to check what permissions are set on your shares - but like I said normally that is just everyone full control and then lock down with ntfs