I drive a sentra, and yes it is more comfortable and I prefer it over Vios due to long distances I travel. On top of it, it is reliable, good build and Tan Chong have served me very well throughout my 5 years of ownership (160k km on the clock). My car is the lifeblood of my salary, no car no pay, thus I need something utterly reliable to ferry me around.
But the same question pops out, it is an old car, QG16 is old tech and you would need to expect the fuel consumption isn't too great by today's tech standard.
Good luck deciding...