The space that your dining table inhabits should have a natural impact on the chairs you choose. For example, if you have a tall table in a contemporary kitchen area, you might prefer some tall bar stools, to give a breakfast bar look. Whereas, if your table is in an open-plan room, you'll want chairs that align with your sofa choice and other decorative touches!
Round tables are an important aesthetic option, with some clear advantages. They are more welcoming, versatile, social and less annoying for diners: the legs are less uncomfortable and because there are no corners, we can avoid painful encounters. However, they require a very special space and are not suitable for crowded parties.