I have done some research on these Champion machines, it turns out they are not as bad as some of you say.
The new machines are manufactured in the UK,and use the Annovi pump, which is Italian.
I have a friend who used to be a service engineer for all sorts of pressure washers, and he told me Annovi are a good company, reliable pump with spares readily available. The engine is not listed by manufacturer, it just has Champion on the front, but as Trev said, why fit a good quality pump to a naff engine? Im guessing this is then same company that used to manufacture motor parts?
Spark plugs, filters etc.. They are also offering a 3 year guarantee with the machine, so they must be pretty confident of its reliability.