First property jitters: Ready-to-move reality?

Visited Jaypee Pavilion Court Royale last weekend, project ready-to-move hai and looks decent. But yaar, first-time buyer hoon, aur parents kehte hain ki possession ke time bahut hidden issues nikalte hain. I'm really worried about the actual quality check. Log jab flat milta hai toh kya kya miss kar jaate hain snag list mein? Like, plumbing issues, electrical wiring ya paint defects... builder sach mein fix karta hai ya bas promises? Often heard about builders refusing to fix small things. Plus, registry experience pe bhi thoda tension hai. Kitne visits lagte hain generally, aur koi unofficial demand hoti hai kya? I'm honestly not sure about the whole process. Koi tips for a smoother registry? Ab samajh nahi aa raha. Hope this helps someone else navigating this too.