This story of DF sounds a lot like Serenity:
- A pretty good product on paper/website.
- The early products were nice...when quality was good.
- Bad products slipped through the crack when demand increased.
- Poor communication from the company.
My guess is that the DF supplier/manufacturer overseas did great work early in the relationship and started to relax and cut corners as the relationship went on.
(I could be totally wrong. This is just speculation.)