This is a great little application. It's polished, attractive, and provides a sophisticated but unobtrusive way of segmenting your working day into manageable chunks - the better to motivate yourself. The menubar addition in this new version has made it even better. It's now a core part of my writing toolbox, and a very simple and concrete aid to getting things done.
The sole additional feature I'd like to see would be the ability to specify certain set time periods (30/45/60/90 minutes, say) and have these directly selectable from the menubar item, to trigger them immediately. The extremely responsive developer says this is on the way.
Other than that, this is perfect for my needs, and worth every penny. I will always happily pay an extra few bucks for a piece of software that nails its intended purpose, and looks great - and TimeBoxed does.