Noida Extension builders: My first-time buyer dilemma

EMI vs rent math is finally making sense, fed up of renting yaar. Landlord ne phir rent badha diya. Noida Extension mein Godrej, ATS, aur Gaursons ke projects dekhe hain. Construction quality aur on-time delivery track record kaisa hai inka? Sach mein, post-possession issues kaise hain? Community ka kya feedback hai?