Nine times out of ten I love my Duet set. However, the only thing that disappoints me is the duet washer. We have had trouble out of it since the day we got it. We bought an extended warranty and have even had the technicians come out to look at it with not much luck. Energy Efficiency It is very efficient. It uses very little water. We do a ton of laundry and definitely noticed a drop in our utility bills after getting this set. Cleaning Time It is a lot slower than the top load washer I had before this. However, I do most of the clothes we wear in cold so that does take it longer. I guess it cleans for an average amount of time in warm/hot. Performance Since the very first day we have had trouble with the spin cycle. Depending on what is in the washer sometimes it does not do an adequate spin cycle and the clothes are sopping wet. I mean dripping water they are so wet. We have also had it leak a small amount of water before on occasion. Ease of Use Very easy to use. Has quite a few settings but they are all self explanatory. Design Love the design. Modern yet simple. Durability Not so sure about this yet. Everything that has happened to it has been something we can work around. We have only had them a little over a year so I am interested to see how long it works since we have already had some problems out of it.