Mobile Wireframing with Illustrator

Illustrator is still my go to for wireframing. To me it's the quickest way to create these types of designs. I consider myself extremely fast and efficient with Sketch and Photoshop, but I don't think they compare with the levels of speed you can achieve with Ai.

I asked on Twitter what other people used and the few answers were split.

Do you use Illustrator for wireframing? If not, is it because you don't know the software well enough or have settled on something else?

*side note: the blueprint look was created in photoshop, the original wireframe styles are attached.