I use Illustrator for work, as do a lot of my designer friends, but it seems that companies, like InVision or Mockuuups, aren't interested in supporting it. Which is a bummer because those tools would be great to have.
At the same time, you have design powerhouses like Area17 showing how great it is: https://guides.area17.com/design-techniques
Or tools like Specctr for redlines: https://specctr.com/cloud/home
What do you all think? Is it a nightmare to develop into Illustrator (but not Photoshop or Sketch)?