I'm blown away by everything about the Shark Stratos!  The suction is incredible.  It's quiet too, especially for how powerful it is.  Also very maneuverable.  The controls are very convenient and easy to use.  The air freshener is a great bonus.  The length of the power chord is fantastic, and I can vacuum my whole house without having to stop to plug it in somewhere else.  The tools are great and there's nothing you can't get to, from stairs to couches.  Super stoked on this great vacuum!!  I've used many different vacuums in my life, but this one is the best by far.