Bricasti M1 vs new M3


I've been using and loving an original Bricasti M1 (not SE) for awhile and have been offered a fair price for it. Is it worth selling and getting a new M3? Anyone have any 1st hand experience comparing each unit?
rsf507
I installed the MDx board yesterday and didn't need to perform and firmware upgrade.  The firmware version shows MDx 1.02.

Bricasti shipped the board to me ($720.00) and it was about a 20 minute task to replace the current board.
 Thanks @sfseay.  Interesting you don't need a software installation and the hardware upgrade will show newest firmware after upgrading.  How do you like it sound after this?