After upgrading my site from Drupal 6 to Drupal 7 my stock notification emails were not evaluating the stock tokens. Either the database update for the new tokens did not process or there was no database update for the tokens implemented.
When I check the settings at [/admin/store/settings/stock] the "Stock level" tokens are not displayed at the bottom of the page. I have to go to [/admin/help/token] and grab the updated tokens from there. It's not a major issue and I'm not sure if it was broken with the upgrade but it's definitely something that should be fixed (probably an easy one) when critical issues are taken care of.
Thanks for your time and a great module!