The core worlds of the Republic, outside of Matar itself, have a lot of infrastructure, equal to almost any developed world in all of New Eden. On these worlds, cities may not be as stylised as Gallente, as ornate as Amarr, or as efficient as Caldari cities, but they are functional and liveable in for any citizen of New Eden.
Matar itself, has some social problems, being the centre of relocation efforts. Any refugees, escaped slaves, returning descendants of Minmatar living elsewhere, all of them tend to arrive on Matar first, and not all of them can then afford to go elsewhere. Large areas of Matar have significant historical or cultural importance, and development is restricted. There are also some groups who insist on a lower-technological lifestyle, as a form of semi-historical re-enactment of their ancestors lives, prior to the Day of Darkness, though the historical accuracy of some of their chosen lifestyles is questionable. This all causes friction with other agencies, and the task of removing illegal migrant camps is a constant endeavour.
The large transient population is a bureaucratic nightmare, and the authorities have their hands full trying to find work, housing, food, and other services for the population.