In the past I've owned two Filter Queens (the green Limited Edition ones) and it's true what has been said, the attachments are of very good quality. Do think carefully though about a few other points before taking the plunge however.
First of all, attachment storage. The "crown" on top of the machine holds everything in place, but there is a little overhang, especially with the bare floor brush. The machine can get hung up on door frames and furniture, and I spent forever nudging mine away from obstacles.
Secondly, the hose handle is of the "gas pump" design. Comfortable to hold, but it's quite large and can prove to be a hinderance if you're cleaning in areas where space is restricted. I noticed this most when cleaning out the car, particularly around and underneath the driver's seat.
Third, the hose does not swivel a full 360 degrees at the machine end (its rotation is restricted so as not to pull out the powerhead plug), and there is no swivel at all on the handle end. Unless you're very careful the hose can twist and kink in use.
Finally, think about how you'll be using the machine. Will you be switching back and forth between different surface types, and between floor and above-floor cleaning? If so, get used to plugging and unplugging the electrical connections every time you want to switch between the power nozzle, bare floor brush and above-floor tools.
Don't get me wrong, the FQ is a great machine and I enjoyed mine - but as the above points show, I found it quite difficult to live with as my main cleaner, hence why I never kept it around for too long.
As for Miele, the variable power and low noise level makes it great for extended sessions of above floor cleaning, but as you say, there is always the problem of the awkwardly shaped hose handle and the dinky little dusting brush. If you can get hold of the Car Clean Set Plus (see link below), this gives you an extra long hose with a short, straight handle end that is easier to use in confined areas. You also get a long crevice tool, which is better than the one already on the machine, and a mini turbo brush which many people would have bought separately anyway. To be honest mine never saw the inside of the car much, but it did make the Miele much more user friendly around the house.
They also make a couple of larger dusting brushes and a very nice extra wide upholstery nozzle too. Thing is, by the time you total up the cost of a Miele and all these optional extras, the whole package is starting to look a little pricey. But it's certainly something to think about if the only thing stopping you from getting on with a Miele is the design of the standard tools.
http://www.currys.co.uk/gbuk/carcle...for-miele-cylinder-cleaners-07786984-pdt.html