Really interesting to see this as I replaced my old Dyson with a corded Animal about 2 years ago and really don't like it. I don't find it good on edges and corners, you have to remember to 'double click' it back upright or else it falls over and the entire cord has to be removed from its holder to use the tube. I also find that using the tube is difficult as its so unwieldy and the whole thing is too heavy for me to do the stairs.
I'd be very hesitant about buying a Miele as I treated myself to one of their dishwashers and have to say that it's the worst appliance it's ever been my misfortune to own! There's nothing actually wrong with it, in that everything works, it's just that the dishes have to be clean before they go in, or else they come out with any residue baked hard onto them. Miele want to come out and 'repair' it again, at the cost of more than a new (different brand) dishwasher.
I've been contemplating the G-Tech, so good to read the comments for those.