Noida Extension is getting all the hype, but is it worth it?

Fed up of renting, yaar. Landlord raised rent again! Finally taking the plunge and buying a place. I'm looking at Noida. Did a site visit to a few projects in Noida Extension. Honestly not sure if the hype is real. Sector 126 seems better connected, but it's pricier. My budget is around 80L. The EMI vs rent math is killing me, though. Heard a lot about Express Builders. Builder ka track record kya hai? Under-construction seems cheaper, but all those RERA horror stories scare me. Ready-to-move is safer, but the prices are high. Is Noida Extension actually a good investment, or am I better off sticking closer to Noida? Any opinions?