yes, I use DSS v5 only for 63 days !!!

You said I need to buy v6 now ?!
Forget it!

I don't see why? A major update? Where is command line, webgui for setting users rights (ACL? your kidding...) and many other.
Yes, v6 give us a change in webgui, but I don't see (maybe just for me) a major improvment.
DSS is more like a NAS for newbie with a nice gui.

And for your bussines I think it was right to offer free upgrade for those who bought (like me) a product close to a "major" update!. Or simply warn us! I could wait, quietly...
I'm very dissapointed.