New Delhi under-construction sites: What am I missing?

Budget finalised, loan pre-approved — but ab samajh nahi aa raha under-construction sites mein kya dekhein. Honestly, sab chamakta hua hi dikhta hai site visit pe. Everyone says check finishing, but asli quality ka pata kaise chale? Maitri Apartments jaise projects mein bhi kya construction quality pe compromise hota hai? Change my mind.