Okay, fine, I'll give my real opinions.
I really liked season 1 of Primal. Beautifully animated, thrilling, and really managed to capture the exact kind of vibe people talk about Samurai Jack having whenever they forget the more talkative episodes of Jack exist. No issues with it.
Season 2 has enough flaws that I can't really call it anything higher than "good". The first half is a bunch of great drama with that one episode Fang finds a mate and the whole Viking clan two-parter, the Primal Theory episode is an amusing oneshot, and it's hilarious that this show was allowed to depict a T-rex giving birth. But the Colossaeus should have only lasted two episodes instead of three, the stuff about the Viking chief and his son wanting vengeance isn't nearly as interesting as the show thinks it is aside from the climax (maybe if he intersected with the third Colossaeus episode it would've improved both storylines), and the last episode is just a mess - the fight with the shapeshifting rock monster is bizarrely uncreative (Spear really couldn't think of anything more clever to fight a flaming rock man than "climb to the highest point of a mountain and tackle him off it"?) and ends anti-climactically, and the burn victim sex just doesn't sit right with me for whatever reason. Probably would've been better served with either more time dedicated to this finale (so get rid of one of the Colossaeus episodes or Primal Theory), or just getting rid of the Viking chief in the same episode his son died.