If you have free Lexis/Westlaw access through school, I don't see how this adds to anything. Lexis has the short case synopsis on most cases, and Westlaw has Black's. I guess it just depends on 1) how much you feel your time is worth (I was fine looking up the handful of cases for each class to copy/paste the Lexis outline in my notes), and 2) how much you think their supplemental stuff is worth. You can get the most popular supplements pretty cheap if you buy them used online, and can usually sell them back for about what you paid.