It depends on the userbase. I write medical imaging software intended to be used by MDs, and can’t just ask a random person at a coffeshop to try to establish a

It depends on the userbase. I write medical imaging software intended to be used by MDs, and can’t just ask a random person at a coffeshop to try to establish a certain cancer diagnosis using our software. Finding candidates that have time for usability testing in that target group can be quite a challenge.