This was so easy to use, right out of the box and 3.5 hours of battery charge time later. Was so pleasantly surprised to find it comes with not one battery but two, so I can do my entire house in one go! Was never able to do this before. It navigated easily from hardwood to carpet and picked up a lot, even though I'd only vacuumed the previous day. So obviously more powerful than my previous machine.  So easy to detail and use the handheld feature for my stairs, something I've never been able to do before and what a back saver that is. Samsung has never let me down with any appliance and this seems to be up to their usual standards of excellence. Even going to be able to use the hand unit and clean out the wells of my car; wasn't expecting to have that bonus feature.