Buying for myself is different, Greater Noida legal worries are real

Been in this market for years, but buying for myself is a whole different ballgame. Ansal Zinnia Garden ke legal issues sunke darr lagta hai, yaar. RERA registration check karna kitna easy hai, par real problem tab aati hai jab builder BBA mein clauses ghumata hai. KCC Contractors ka track record bhi dekhna padega. Log kehte hain RERA complaint effective nahi, bas paperwork hai. Sahi mein aisa hai kya? Greater Noida mein kisiko RERA se help mili hai for builder defaults?