The feature I like the most is the programmable time feature. For my other slow cookers I turn the dial to low or high and have to set a timer.  With this slow cooker it is basically all in one where you choose your setting and then the time.  When the time is complete it stays at a warm setting to serve at a later time. 
When cooking for a large crowd this slow cooker holds it all. I have a 4qt and 6qt cooker, so the option to use the right one is fantastic.  The food that I have prepared thus far in this slow cooker has turned out superb.