Forget the 'serious design flaw' mentioned in a previous review. Just MOVE YOUR HAND and you'll reach it with no problem.
As usual with Dyson, is superb and simple. Everything is made to come apart easily for cleaning, and it doesn't take a rocket scientist to put it back together. The diagrams in the handbook are clear and concise, with no extraneous blurb to pad things out.
The cable length 'issue'?
I found 6 Metres to be enough to work with and not too long to get tangled up around furniture. Most houses these days have multiple wall sockets for the new fangled electricity, so moving a plug from one to the other is hardly the end of the World. You just don't need miles of cable any more.
The performance? Well, what do you expect me to say? Dyson always delivers, and this vacuum is no exception to the rule.
Is it cheap?
No, but you knew that already. Dyson stuff will never be cheap because what you are buying is not 'just another hoover' but a superbly designed piece of work that looks cool, and will continue to look cool long after other machines are dust.
There's also the matter of the five year guarantee, which says a lot about Dyson's confidence in it's products.
I might add that I've just bought the AM01 fan. Nope, not cheap either, but it's the design that makes Dyson stand out from the crowd, and will continue to do so for as long as they remain innovators in their field.