Time zone mishandeling prevents us from upgrading

This is a potentially cool plugin, but the inconsistent and incorrect handling of time zone display in the basic version is a red flag for us to justify upgrading. The pages upon pages of troubleshooting FAQs and forums related to this bug throw responsibility back to we end users. The plugin developers should recode their app to use the time zone in the WordPress settings and be done with falling through to the web server PHP time zone setting – IF that is the cause of the issue.
We simply do not employ full time programmers to debug and chase down faults in this or any other plugin. Time zone settings, recognition and display work just fine in all other areas of our site. If and when this otherwise decent plugin is fixed to handle time zones correctly, I will consider recommending that our non-profit volunteer staffed organization pay the price for the upgrade. Until and unless I see that happen, I’ll keep shopping and evaluating alternatives.