I found a really informative video demonstration of the Miele S7 upright produced by our friend Roger. Though the model is a UK version with a maximum power setting of 1800 watts, it is essentially similar to the deluxe version of the S7 sold in North America.
Because you don't need to lift this vacuum up and down stairs, its hefty weight should not be an issue.
Here is the clip:
[MEDIA=youtube]Vqb_795amO8[/MEDIA]
