>>2180458To my surprise when I found out, F/Z was lots of people's entry point to the Fate series and the ending of F/Z doesn't have a great deal of closure because it sets up for the events of F/SN. They have a valid reason for feeling disappointed with the ending but it's common knowledge that F/SN is the best starting point.
On a semi-related note, I ripped the image assets from F/SN a while back if anyone wants to have them.
www.mediafire.com/download/jgjhdy28027qqn5/Images.rar 