Overall, setting up a test on your platform was as-easy or easier than the competitors. Creating rating scale questions was super awesome; having templated labels for the scale was very helpful.
Your keyboard shortcuts were excellent and easy to use. I particularly found the combination of spacebar, a, and shift+left-arrow helpful in placing annotations. I also used shift+up/down arrow for speed control. Keeping my hands on the keyboard while reviewing and annotating videos is crucial. Anything that makes me use the mouse during that process feels inefficient and slow.
User Experience Director, 10up