I don't include working 8-5 in my definition of "efficient". Although I do think working the same hours as the rest of your team has benefits too good to ignore

I don't include working 8-5 in my definition of "efficient". Although I do think working the same hours as the rest of your team has benefits too good to ignore. I mean having a life where you can still exercise, eat well, enjoy some hobbies, spend time with friends, etc. Means that when I sit down to work, I'm so much more focused and willing that I ultimately get more work done. I agree following a process to the letter without really thinking about what it's doing for you is bad. If you feel agile is not allowing you to pursue other needed things then that's bad. Take what works for you from a process and leave the rest behind.