Purvanchal Saket Dham ya Mecon? Confused!

Ready to move is *always* better than under construction, right? I'm leaning towards Purvanchal Saket Dham since it's OC received. My wife's priority is a safe society for the kids. But honestly, the Mecon Apartments project is tempting coz of the potential appreciation. Saket Dham's price per sqft seems high though. Are we actually getting more usable space? I need at least a 3BHK, and carpet area matters more than fancy amenities. Mecon might be cheaper overall. Anyone have experience with Purvanchal Group? Builder ka track record kya hai? Tell me if I'm wrong about ready-to-move being safer. Change my mind.