How I Use It
I am an Instructional Coach in an inner city school with 98% poverty and 45% ESL students. I use LZ lessons to show my teachers models of how to teach the new shifts in ELA CCSS. My teachers have watched the tutorial lessons and then made them fit into their planning. We are not assigning lessons to students and having them work independently. Although it looks like a good feature, it's not something we are committing to or really need at this time.
Learnzillion has given me multiple examples on how to structure effective lessons to meet the CCSS. The search program needs to be tweaked but otherwise good stuff!