I've had my Vitamix for several years and used it on a regular basis.  I was reluctant to spend the money on the Personal Cup Adapter but finally went for it.  OMG!!!  It fits into my daily routine, perfectly!  My wife started putting in little request for her smoothy and mine was always a little different, until now!  I love it and use it, are you ready, everyday, one for me and another for my wife.  That's not all.  I workout regularly and will use it, many days, twice.  Sounds crazy but once you get it you'll fine so many great tasting things to make with it, it becomes a daily routine for me, my wife and now my grandkids want some.  I already have the 64oz, 32oz but this is the perfect, everyday personal make it and go size.  If you have a Viatmix, this is a MUST!  You we never regret buying this component!  Fill it, blend it, pop the lid on and GO!