What check is the Maze Mind of Nuar going against?

[Jonathanheimer]

If there is a check lets say to make a navigation, and its DC15. I use maze mind. Am I having to beat DC15?

The discrption calls it a level wisdom check? To me that suggests I am suppose to make a check against my level. Just some clarity would be great.

[Arutema]

Alien Archive wrote:

Maze Mind (Ex) Nuars have a naturally strong sense of direction and an instinctive understanding of complexp atterns. As a result, they very rarely get lost. A nuar can attempt a special level-based Wisdom check (1d20 + CR or level + Wisdom bonus) instead of using his total bonus in the Piloting skill to navigate or his total bonus in the Survival skill for orienteering.

So a nuar can roll d20+level+wisdom bonus instead of the piloting or survival check, the DC remains the same as the original piloting or survival check.