After reading various trustworthy reviews and taking advice from a VinShine owner, here is my general impression of several noteworthy streamers:
T8 » Volumio Rivo+ > Lumin U2 mini (w/ 'official' LPS mod) >> Lumin U1 mini.
Because the T8 has a brighter house sound, I still consider the Rivo+ to be the better streamer. However, I will likely retain the T8 for my warmer-sounding rig, as it pairs exceptionally well in that system. With dual LPS, fully isolated ports, an extremely dark background, huge soundstage with pin-point imaging, and a smooth app experience, what’s not to like!

