We bought this washer and dryer set as a replacement to our old Samsung set. We used the old set for about 20 years. So fast things are working good. There are a couple of concerns though. 
One is that the washer doesn't spin as well as our last washer. Our clothes felt almost dry with our older washer. This new one doesn't spin out enough water. 
Secondly, the door on the washer can't be changed to the other side. The dryer door can be changed. We are going to try to put the washer on the left side of the dryer and see if that works. The only problem we foresee is that the drain might not be long enough for this. All in all we like our new set. 
I've just downloaded the app for three "Smart Care" feature, but haven't used it yet. The reviews on the app store for this feature doesn't look good though. Time will tell!