It is very easy to see what times you have to work, we make use of little pictograms for every shift and somehow this gives me an instant overview of my workweek. Besides this, if you swapped a shift or something changed within the schedule the 'old' assignment will still be visible for you. In this way it is easy to see what has changed. Swapping shifts is easy and straight forward.

You can easily see an overview of all available times etc

easy overview, synching with google calendar