₹1.5 Cr for a 3BHK in Noida Extension — is this carpet area premium justified?

Upgrading from 2BHK. Deepak Green Residency aur Apex Golf Avenue mein floor plans, especially usable space, check karne ka koi hack hai kya? Builder brochures pe bharosa nahi hota. I'm keen to know which one feels more spacious. Any tips to spot wasted space?