"Good design" refers to something that has been created thoughtfully, with careful consideration for its intended purpose and its users. It is visually appealing, functional, and makes everyday tasks easier or more enjoyable. Full definition
Let the insurer know about any specific safety features built into your Jeep, so that you can take advantage of good design for lower premium amounts. (autos.com)
Babies and toddlers learning to feed themselves can get frustrated and most utensils are not well designed for how toddlers want to hold and use them. (blog.guguguru.com)
Also, it starts with good design in the first place - before you put your finishes on - what are you doing to make the space stand apart? (biggerpockets.com)