What RERA won't tell you about builder delays

RERA is supposed to protect us, but builder delays in Gurgaon still feel like a scam. I work in real estate, par khud ke liye buy karte time bhi darr lagta hai. My DLF The Aralias possession delay has me worried. Builder-buyer agreement mein itne hidden clauses hote hain, aur title verification mein bhi tension hai. RERA complaints file karna kitna effective hai actually? Matlab, does it really help ya bas paper pe hai? Any actual success stories or tips for a frustrated buyer?