Stumbled upon this manga by searching manga titles with "dungeon" in it and saw how high its rating is and gave it a try. After reading a few chapters, it is definitely deserving of the high rating. The setting doesn't feel cliche despite being set in a fantasy world, a lot of thought was given in the monsters being presented in the story, and the characters have more traits than just their quirky behavior.
It's also hilarious and it is always enjoyable seeing Marcille complain, kinda like Aqua.