Meitner MA1 V2 upgrade - worth it?

Hi All.  I have a Meitner MA1 DAC that I like very much.  There is a new (not inexpensive) hardware upgrade to V2 - at $2,600 Australian (around $2k US).  I was wondering if anyone has done/heard this upgrade (V1 vs. V2) and if so what are the differences and your thoughts on whether it's $2k (US) worth.  Thanks in advance.