Well after Fiio managed to add replaygain to the M7 and the Cayin N3 has it so I hoped it would spark Shanling to add it to the M0. From what I have read in the M7 thread Fiio will add replaygain to some of their other DAP's soon. It looks like replaygain is starting to become a mainstream feature with several DAP makers. Shanling needs to get on board I think if they want to keep up with the competition. So the M7 now has replaygain and LDAC, I would hate to have to consider a Fiio DAP to get what I need. Something I swore I would never do is buy another Fiio DAP. I demoed the N3 and it wasn't bad but no LDAC but if the next iteration of the N3 adds LDAC and keeps the hardware buttons it could be what I am looking for. Of course nothing yet from Cayin on that front but maybe something at IFA in September.