We have had laminate installed in the entire downstairs (2,600 sq ft) and use area rugs to create 'areas'. We love it! Only the rugs are vaccumed and I use a swiffer to clean laminate. Cleaning the laminate is much easier on my shoulder (rotator cuff surgery) and I can now really clean under the beds. One big difference we noticed after installing the laminate is that the AC filter doesn't have to changed as often because there is less dust in the air as there was with carpet. Will I go back to wall to wall carpet? Not a chance. Our is installed on concrete but does have a cushioned layer beneath and the flooring 'floats' on it. No glue or nails were necessary. The name of the laminate? I am having a SR moment and can't remember but it was not Pergo and came from a bldg supply store.
Would not recommend a very dark shade as it shows absolutely everything and is not forgiving. Good luck and let us know what you decide.