Ready to move is always better, fight me on this

Noida mein I'm looking at property, and frankly, under-construction projects give me anxiety. Amrapali Crystal Homes is ready, but Adarsh Group Hindon Vihar is cheaper. But what's the real cost, right? Delayed possession, extra rent... Is it worth the risk for a slightly lower price? Carpet area bhi matter karta hai, yaar. Views?