It is an easiest way for quality assurance
Quality Assurance is need of the hour, whether you are offering a product or service. One can achieve highest standard of quality only by feedback. When people inspect your work with keen eye, they come across the flaws and mistakes in the design, which can be removed in the earlier stages only. Therefore a five-minute glance at the design can save your hours of hard-work. Hence, it assures quality.
It makes you self-critical
When others review our work, it presses us to critically evaluate our own work. It forces us to be honest about the work done and criticize the things which aren’t upto the mark. This induces a sense of responsibility and a power to become self-critical. Once a designer attains this, he becomes open to criticism and improves a lot.