ATS Le Grandiose is seriously overpriced for Noida, change my mind

NS Express Avenue seems like a better deal, tbh. ATS Le Grandiose is quoting crazy rates, almost double! Is the carpet area really that much better to justify the price difference? Metro connectivity is similar for both. Plus, I'm hearing horror stories about high maintenance charges in ATS. My parents keep saying go for a 'reputed' builder, but ab samajh nahi aa raha. NS Express seems like better ROI. Disagree? Tell me why.