I bought this in September 2010, to replace a 10 year old Pure Power Hoover that had bitten the dust. I chose it because it's relatively cheap, powerful, has HEPA filters, and I can use my old Hoover for spares if I manage to break bits off it.
It's easy to use and is no noisier than I would expect for a cleaner of this power. It cleans edge-to-edge and has a hose for cleaning the stairs, though the stair and upholstery brushes are a bit basic.
I prefer a bagged cleaner as I don't want a faceful of dust every time I empty it. Pure Power bags or clones are easily and cheaply available, and close automatically when you remove the full bag, so bag changing is very clean and simple. The HEPA filter is washable.
One highly irritating detail: Hoover have reduced the length of the cable compared to the older model. I live in an upstairs Edwardian conversion flat with stairs, but no downstairs socket. I used to be able to clean right up to the front door, maybe 10 feet from the foot of my stairs, but can no longer reach. How much do the manufacturers save by reducing the cable by a few feet, FFS?