I actually wrote a short article about the Argent tower level, because it was really excellent, not sure if I'll post it. Want to play through the rest of the game to see how it informs the thinking in it. Question: did they have different level designers take ownership of different levels? Feels that way.
Haven't gotten any further in the game than that, so I'm not sure, but I suspect Argent will be the best level in the game. If it continues to get better that will be awesome.