Water and energy efficiency is really important to me and this is the most efficient machine available.  It uses so little water that it often looks like there is no water in the machine.  It also gets the clothes really clean and refreshed, not beat up.  I have a stacked washer/dryer so I needed a machine that could fit into the space and this unit has the smallest exterior dimensions, which allows for more room to install/remove and a bit of storage space.  The only thing I don't like is how the washer/dryer stack.  There is a flimsy bracket in the rear so the dryer can move and it does squeak from vibrations when the washer is in final spin.  My old machine had the mounting brackets in the front that came out from a hidden screw and it held everything together very well and made it easier to move the machine for install or maintenance.