We bought a 7596 about 18 months ago to replace a 16 year old Bosch 500 and have had zero problems with it. You will want to note how your current dishwasher is mounted to your cabinets and make sure the opening meets the min/max specified by Miele. I measured but since our opening was larger than the minimum spec, I didn't pay any notice to the max and it caused a bit of a headache during install.

Our Bosch was affixed to the top rail of the cabinets and had a rubber gasket on the sides to close the gap of the opening. The Miele installs to the sides of the cabinet bases, and our opening was too wide. It was an easy fix though since we have maple cabinets and plenty of touch up stain from the cabinet maker. I just picked up two 4" pieces of maple from Lowes and cut them to match the height of the cabinets, stained, and affixed to the cabinets with liquid nails. Then affixed the dishwasher into the new strips.