Just arrived... first impression is a bit bland, but inoffensiv. I first updated the firmware (every little thing now wants software updates...), took to the EQ and introduced a low shelf at 40Hz with 5dB, which lets me hear astounding low bass, clear structured and quite impressive. Mids are well balanced, voices sound clear. Treble is there, nothing sharp or sibilant. I'll get back to them later today. The case is rather big and not that suitable for pants pockets, the lid feels a bit flimsy yet it closed nicely. Button actions can be customized for left/right separately -- I immediately changed the double click to forward instead of environment mode (the default), which I moved to tripple click (I don't use any voice assistants, which is the default for 3x). They switch on when removed from the case, just like the new TW2 -- nice.
Did not find a way to see the battery state of the case so far...