I have one small complaint about this vacuum.  The hose is not as flexible as I would like it to be.  This is the second shark canister that I have purchased; the first still works, but the carpet head motor burned out after 10 years of use.  I like the fact that this one has just the one head that easily switches from rug to bare floor.  It moves smoothly and the head as advertised does in fact keep itself hair free  - yay!