I only received my Rumblex Plus yesterday so have only used it 3 times and have not explored every setting nor every feature yet. It IS very sturdy and seems very well made; I can say the pulsation (vibrating) motor setting is GREAT - it's what I was hoping for.
Have used the Rumblex Plus for only a week, but am encouraged with the results. Hip pain is ever so slightly better at this time... and we haven't event gotten into the video workouts.