[kull]

It is super hard to switch to the new platform for bugs reporting / tickets. You just do not want to lose all the old tickets and then retrain your team, then there is a big probability the new tool is not that great after all.

We switched from JIRA to youTrack[1] and it was one of our best business decisions recently. It is not perfect, but we will switch again, only if a really superior tool arrives and when it is maintained with some larger company that we know will not go away anytime soon.

BTW. Zepel looks very sleek.

[1] https://www.jetbrains.com/youtrack/