I really enjoyed reading the debates around choosing boring or exciting technology. In my opinion, there is another interesting point, beyond new or old, that is about longevity, or durability....
You may be familiar with this situation: your team has been working on a project for a while, and now that it seems to do the job, it is not really justified for so many engineers to spend time on...
At last, with all this surrounding pressure, you finally decided to write tests. Now, you always setup TravisCI to run when code change is submitted. You now feel confident when pull-requests come...