I have the Shark Vertex Bagless Corded Canister vacuum with duoclean PowerFins. I have to say that this is the best vacuum that I have ever used. It is very easy to use. I have four cats and lots of fur everywhere, This vacuum has picked up just about every bit of fur off my furniture. There is more suction than any other vacuum that I have ever used. The self cleaning brush roll just speaks for itself.  Also very easy to empty the canister.