Hi all.  From my own experience, the link already mentioned
 http://wga-datenbank.de/search.php?s=1#
indeed is searchable.    Takes a little working out, but I found it a very useful primary source.  

I went to the Landesarchiv, consulted some of the files there from my family, and then asked for copies, which were sent to me. 

I was also told by a kind archivist there, that another archive is available in Berlin. 
This is the "LABO", which (apparently) in the provincial archive for specific categories of reparation requests. 
These concern (as far as I have ascertained) claims concerning - 
- health
- imprisonment
- education issues. 
I have heard that these often contain detailed and personal "stories". 

I know that there are several files there on my own family. 
These cannot be copied , but can be photographed on site.  They need to be ordered in advance, and then studied on site. 

Landesamt für Bürger- und Ordnungsangelegenheiten (LABO)   
Abt. I - Entschädigungsbehörde   
Opfer des Nationalsozialismus   
Sachbearbeitung   
I A 45   
   
Fehrbelliner Platz 1   
10707 Berlin   
Telefon: +49 30 90269 5145   
   
Fax: +49 30 90269 5100   
E-Mail: andrea.pahlke@...  

Good luck
Best David SELIG