I finished the first South Park game from 2014, The Stick of Truth, and I have a few thoughts.
1. The story is hilarious. It really is like playing an episode of the show. Obsidian did a great job of making this game as outrageous as possible, and it's awesome. (Canada is a 2D Zelda game!)
2. Some of the in game mechanics, not battle, are cumbersome. All of the farting training sessions are a nightmare, and barely work, and it's a miracle that I was able to finish them to continue the game. Furthermore, some of the puzzles are more difficult to figure out than they should be because the foreground and background are cluttered. Nothing game breaking, just annoying.
Overall, it's an Obsidian game. Very well written, but the mechanics hold it back from being great. It's the story of their whole existence as a game developer.
Yeah they made it really seem like it was an episode. The best line in that way was the Taco Bell green sauce that Cartman didn't know existed. ---