We needed to include a challenging subproject into our main project and chose /dev for this task, because we already knew about the high quality work they deliver. Working together with Maciek was a breeze as he quickly understood the existing codebase due to his broad experience. So he could seamlessly develop and integrate the new features. I want to point out that the communication with Maciek was always quick and on point so we were always aware of what was happening and thus received exactly the results we expected!