FET has got a new "open source excellence" badge on its site.
That mean FET has more than 100.000 downloads.
(Of course a lot of downloads from different versions, so number of users will be (much) lower)
see:
https://sourceforge.net/projects/fet-timetabling/
Thank you, Volker, for taking care of the SourceForge.net site of FET!
Minor correction: it is "excellence", not "excellent".
oh.. sorry. Fix that in my first post.