A customer might tell you they chose a product because of:
price,
quality,
features,
reviews,
or convenience.
But before any of that happens, they have already formed an impression.
A brand can communicate:
premium
accessible
reliable
innovative
bold
minimal
traditional
young
without saying any of those words.
Colour, typography, imagery, language, packaging and consistency all influence perception.
Good branding gives you greater control over that perception.