I have tried the pomodoro technique for several months. In the end, I quit. I found the technique was only good for "starting" the work. After that, the technique only got in the way.

1. If you're not a single person (ie, you have children and/or spouse) then the idea of an "uninterrupted pomodoro" is nothing but a dream. Things happen. If you don't pause or restart the pomodoro you leave it on and then you give up and move on to the next one, or you work through the break to make for the lost focus.

2. Breaks can often feel like a waste of time when you're in a good flow state. Why stop because your timer says so? I'd often go for several breaks/pomodoros without paying any attention to my timer.

3. Sometimes starting the pomodoro would take a lot of effort (more so than just working). I think it's because you know when you start you're locked in for 25 minutes... if you don't have a clear task and motivation to start you end up delaying.

The list goes on and on... ultimately, I said to hell with it.