Is Vivacity Creators a safe bet in Noida Extension?

Has anyone actually invested in Vivacity Creators projects in Noida Extension? I'm looking to upgrade to a 3BHK for the family. My wife's priority is a safe neighbourhood for the kids, and good schools nearby are a must. Honestly not sure if Noida Extension is the right place though. We initially considered Sector 155, seemed premium, but the sqft was less for the same budget. The under-construction vs ready-to-move debate is killing me. After all the RERA horror stories, is it worth the risk for a slightly better price? Need some honest opinions, especially from people who've dealt with Vivacity Creators before. Is possession on time even a possibility?