Based on the reception the 1.4 version was getting, I updated my Pontus II over the long Memorial day weekend. It took me two tries, but at least I didn't brick the DAC. The most frustrating aspect of the process was the instructions. It would have been nice to have one, unified, step by step set of instructions for Windows instead of trying to figure out which parts of the setup guide applied and which didn't.
Anyway, so far, I can say that the 1.4 is certainly no worse in any way than the original firmware. I need to listen more, but I hear an improved ability to follow musical lines within a recording. A bit more fine detail is apparent. Bass is excellent, with superb definition and extension. The soundstage is a bit harder to get a handle on. As with the original firmware, it is very source dependant. If I get a better handle on the sound of 1.4, I will post it. But, kudos to Alvin for making a great product even better, free of charge.