Hi Rick,
We have purchased both through Mattamy. Our home is 1717 sq. ft and just last weekend I was telling my husband that I wish the hose was A LOT shorter

There is 1 outlet per floor. On the upper level it is in the hallway, on the middle level it is in the hallway as well so central to both ends of the house. And there is one in the basement as well. The toe kick is located at the bottom of a bank of drawers and it looks nothing like an outlet, you kick it open and it sucks the dust/dirt in.
HTH