wiim need to get this stereo/surround option nailed and a totally stable stereo muti room option, sonos still seem to be the kings of multi speaker link ups. my old sonos 1s version 1.0 still work perfectly, my switch to wiim was really just on a 'whim' ..

Point is if they want people to stay in their ecosystem then it needs to be 'bulletproof' and not require a degree in pi, nas and various other things discussed or multiple forum visits and tickets to try and resolve.