We appreciate your feedback, and we're sorry to hear that your process wasn't as pleasant as it could have been. In the past few weeks, our hiring managers have streamlined our process to make sure that we're thorough and efficient, and we definitely don't want candidates to feel that they're doing "free work" for us in these exercises. We also do offer opportunities for feedback after interviews, and are happy to follow up with you directly if you'd like to reach out to the team.