GMU,
Do you have an animal that sheds so you are going to have pet hair?
If so I HIGHLY recommend you get into the habit of emptying the cyclone receiver (where the dirt collects) much more often then you are used to. Especially if you are dealing with pet hair.
We've had the Animal Dyson for about 5-years and LOVE it. You are right, vacuum with a regular vacuum and then run over the same area with a Dyson and be amazed. The only problem we've had is my own fault and I needed to change habits. If I go to long between emptying the cyclone receiver pet hair will backup in the tubing and you loose suction. Then you have to disassemble the rotor head and clean out the hose leading to the cyclone chamber. Not hard, but you can save yourself the hassle if you empty often. With my pattern I empty it 4 times just doing the living room.
(We have an Australian Shepard and two cats.)
Enjoy,
WW
.>>>>