Honestly, the vacuum itself is powerful and works GREAT!  The problem I have:
the power head is too small, the stick is top heavy, the grip is wide and hurts my hands,
AND you cannot stand it up.  Because it is too top heavy, it falls over, so, you need to prop it up when moving furniture or picking something up off the floor.  Poor design.
Not happy and will be returning product.  Not sure why they Shark gave up producing the Ah452 Rocket.  Maybe,  Because it worked, it was light weight, easy to use and very maneuverable.  My favorite vac.