Sounds like they do still have room for improvement in the customer service department. But let's also not forget the whole "product-review forum" syndrome, where the poor instances of the product get much more exposure because people with them are far more likely to put the effort into writing about it. And when all those isolated reports get corralled into one spot, it does create a bit of a misleading negative perception. I have seen it happen many times on some of the hobby modelling forums I belong to. Whenever a certain model gets released and a few of them turn up with some factory defects, it gets posted about ad nauseum and the whole production run gets a bad rap. In reality, those models were superb, and the fear of the couple bad apples just spoils the bunch for everyone else.
It would be interesting to know the actual failure rate among the Subs produced, for all we know it could be only 1 in 1,000 that turn out like this and all the other happy owners with good units are just silently enjoying without posting about it here. Because of this, for every unit that goes belly up and reported about here, I still feel compelled to give mine a shout-out for coming up on a year of flawless performance