Noida real estate: Sector 22 or Yamuna Expressway?

Need help deciding. My wife's priority is a safe area for the children. I'm looking at 3BHK flats near Sector 22. Heard Yamuna Expressway offers better ROI, but is it safe for kids' school admission, etc.? Has anyone invested in SS Group projects there? Kya kisi ko pata hai which gives better rental yield, 2 or 3 BHK? Honestly not sure if the appreciation is worth the risk. Should I stick to Sector 22?