My second property hunt: Noida legal headaches

My current investment portfolio needs diversification, so eyeing Noida for a second property. Everyone glorifies RERA, but off the record, kitne log actually builder ka legal track record deeply check karte hain? I'm looking at ATS Capital Athena, but even big names can have title issues. What red flags should we *really* look for beyond just RERA registration? Disagree, ki RERA sab solve kar deta hai? Tell me why.