Season one, despite the subpar acting and oftentimes horrendous writing, is worth a watch for the unique premise and interesting ideas presented. Just beware that you might find yourself shouting at your TV screen as you watch a character make a really dumb decision for the fifth time in one episode. 6/10 for uniqueness and being an entertaining watch despite its issues.

Season two is not worth watching at all. 3.5/10 - the keys become nothing more than a gimmick and never reach the same level of intrigue as the first season. It also feels like barely anything happens by the end of the season. The writing is even worse than the first season, and characters make even more dumb decisions.

I regret tuning in for season 3. Somehow it was even worse than season 2. Totally doubled down yet again on all the bad decisions made by the writers for the previous seasons. Add to that the addition of an awful new dull villain and you have the worst season of TV I've seen all year. 2.5/10.

Overall - 4/10. Season one is worth tuning in for, just to see some of the interesting ideas on display. But don't do yourself the disservice of continuing after that point - it really does go downhill big time.