This software monitors SMB shares via a menubar item.
One of the benefits of this software is the drop down menu that displays current connection information. It's certainly convenient to have this information so readily available. Of course, it's important to note that the menu will not update while it's being displayed.
If you're curious about the specific details being reported, you can type 'man smbstatus' at the terminal. This will give you a better idea of what you can expect to see as you monitor your Samba shares.
It's worth mentioning that this software is currently considered BETA. But don't let that deter you - the software is provided free of charge. Give it a try and see if it meets your needs.