I had the 2018 revision. Sold it because it was really unbearable at least with my system and got tired of so many games with issues, but especially due to Terraonion’s customer support and unreliable attitude. No clue how “rev. B” (2019) performs.
Have now a spare Mega Drive 2/SSDS3 Packapunch RGB cable, like new (since I never had a proper chance to use it) and with audio breakout, in case there’s interest, by the way.