Good design to me is not only the way something looks. Good design, in my opinion, should not only look astonishing but also perform well, be long-lasting, and should be well optimized for search engines and different devices. Good design also should be very intuitive. It should not have manuals but be self explainable. One of the most crucial parts is that a good design should be user-oriented (user friendly). In the end good design should be a good business.