Author here. There was some good discussion on reddit<p><a href="https://www.reddit.com/r/programming/comments/4ckq18/unwinding_ubers_most_efficient_service/" rel="nofollow">https://www.reddit.com/r/programming/comments/4ckq18/unwindi...</a><p><a href="https://www.reddit.com/r/golang/comments/4cho4k/unwinding_ubers_most_efficient_service_in_go/" rel="nofollow">https://www.reddit.com/r/golang/comments/4cho4k/unwinding_ub...</a><p>Happy to answer questions or feedback!