Nissan Sentra 2006 1.3 gx parts and maintenance

hi guys, im considering getting a 2006 sentra as my first car, and ive heard rumors of sentra na madugo pag may nasira or mahal ang maintenance.Like if for example may nasira you have to change the whole kasi kailangan the whole assembly?and sunod sunod na yung sira niya.

applicable parin ba yun kay 2006?saka bakit mura ang sentra compared to other japan makers?

Thank you sa sasagot =)