M-500. SW 1.4. HW 1.2
SOtM SMS-200, local network, internet radio, Quobuz etc via Bubbleupnp (android).
LG OLED via optical.
SE output to amplifiers.
I've been happy with the SMSL so far being an early adopter in the UK, I feel the audio quality is above reproach. No problems with the UI or pops/clicks whatsoever, it changes sample rate perfectly and silently.
Gentle pop when changing input, that's all. Certainly no detectable change in performance with temperature, and never dropped the optical connection to the TV. I couldn't be happier, except maybe for wishing I had ordered black instead of silver.