Hi Diana, we have been using Sweeney Clark with simulation for several years. The upside is that everyone pretty much understands Benner's Novice to expert work and it is a thread in our curriculum., it is fast and relatively easy to use.
Last December we asked faculty to watch 3 short videos and then using SC we asked them to rate the student performance. To our surprise/disappointment there was much disagreement and many people chose N/A despite there being - what we thought - was clear indication of the behaviour. We are still working through the data and will be looking at what this means for us.