There was one point where I just disagreed from my standpoint. The pomodoro technique.
In programming for me, it never really worked. I mean, let's say I just got an idea for a specific piece of code, if the pomodoro triggers a break, I just lost my line of thought. When I'll get back after the 5 minute break, I will no longer remember what I was doing or how exactly I thought doing it.
I don't really know if for you folks it worked, but for me for this reason it didn't work and it never probably will.