Delhi RERA is not really for buyers

RERA compliance sirf paper pe hai ya actual mein kaam karta hai? I'm eyeing Sri Sri Homz's The White Residency in Dwarka. Builder ka legal track record aur title clarity kaise check karte hain? Lawyers bas 'sab theek hai' bol dete hain. Has anyone faced issues with OC delays in Delhi even post-RERA?