I use it all the time (pun intended).

easy to use, looks good, still working after two years.

- Unlike the other reviewers, my timer is still holding up well after 1.5+ years of daily use (8+ uses/day, frequently throwing it in my backpack). The only casualty so far is that my toddler pried off the pointy part of the dial to help set the timer, which makes it a little harder to grasp it - I find the highly visible "time remaining" a much better way / more motivating way to convey time left in a work block than a simple time countdown - Also unlike other reviewers, I like the "twist to set" function. The original Pomodoro Method actually recommends taking some manual "set timer" action like this at the start of each work block. While I'm not convinced it's essential, I definitely don't mind it. It's true that the timer lacks resolution beyond ~30 second increments, but I don't really care if I set my timer for 25 minutes or 25 minutes and 30 seconds.

What it does: you can set an amount of time, and at a glance INTUITIVELY see how much time you have left in red. The beauty of it being 1 hour is that not only is that usually enough time for most tasks you will use it for, but with use, you will learn to very intuitively read the red space at a glance and monitor your time effortlessly. Great as a tool for using the Pomodoro method or some variation. Essentially, when you are having trouble focusing, you can set it for 25 minutes, starting some focused work you are perhaps avoiding, with the knowledge that after that time you will reward yourself with 5-10 minutes of break time. In my case, that's usually all I need to get started, and depending on how I feel after, I may do more 25 minute sessions, or switch to more organic work blocks and breaks before I start to feel too drained.