Great quality. One of the soldered chips (right shift) was not working, changed it with a spare one (it was included). Works good, flashed it with QMK tools (started working only after a few attempts, first ones led to undefined hardware messages, hardreset of pcb helped)
No QMK support is a bit of a bummer but TKG isn't too bad. The number of underglow LEDs increased from XD84, but could barely shine through the glass. Still a great PCB overall.