I received my Samsung ME17R7021ES microwave last weekend and am very satisfied. I was hesitant to switch to stainless because of the fingerprints but it's been easy to clean- even with  kids using it!
The auto defrost function is accurate . With my old microwave I always needed to add time to get the job done but with this  one the meat was perfectly defrosted the first time. 
I like the soften/melt function. It's great when baking/making desserts that use melted butter, chocolate or softened cream cheese. Like the defrost function this function's pre- programmed time was accurate. 
If you do need to add more cooking time there is the convenience of the +30 seconds button. 
Overall great product so far and would recommend! 

Update: I have had my new microwave for over a month now. Still very satisfied with it. Looks great and works well.  Easy to use- even for kids.