In our experience, Heroku has orders of magnitude more issues than AWS. Look at their status page for a list of issues since only Jan 25th: https://status.herok

In our experience, Heroku has orders of magnitude more issues than AWS. Look at their status page for a list of issues since only Jan 25th: https://status.heroku.com/ https://status.heroku.com/ They pretty much have an issue every other day. Sure it usually only effects a small subset of users, but you wind up getting bit by them more often than necessary. We were on Heroku for more than a year before we couldn't tolerate the sporadic outages and performance degradations anymore.