We've had our Sunset Luxe for over a month now and I am very happy with the purchase. We are both primarily side sleepers and have found the mattress to be very supportive but with enough give to be really comfortable for side sleeping. I am 220lbs and my wife is just a little over 100lbs. It works great for both of us. 

Edge support is pretty good on the luxe model.

The only possible negative I can think of the motion isolation is only ok, but I'm perfectly fine with that trade off.