UC projects: RERA ke baad bhi kya hidden delays hain?

2 years wait on my last UC project in Greater Noida West felt like forever. Now I'm looking at Noida Extension again. Confused between under-construction properties, maybe from Gaurs or ATS, and ready-to-move flats near Gijhore. UC ka rate thoda better mil jaata hai, around ₹90L for a 3BHK, but RERA ke baad bhi delays ka risk rehta hai kya? Ya market matured enough hai? RTM is like ₹1.2 Cr for same. What's the scene now? Is the 'early bird discount' for UC still worth the headache, ya RTM lekar tension free rehna chahiye? What's your experience with recent UC projects?