I've never tried the in-wall speakers other than the m3 in ceiling. They sound really good but they are only used for Atmos sound. The on walls sound really good.

LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8