Prestige City: My investor concerns surface

Been tracking Prestige City for a while now, probably 6-7 months. I work in real estate, but honestly, buying for myself is totally different; it's hard to cut through the marketing fluff. For investors, what's the real rental yield like there? Builder promises sound great, but what can one actually expect on an 85L-1Cr flat? Also, worried about the investor-to-end-user ratio. Don't want to end up in a ghost society, you know? How liquid is the resale market there for a quick exit if needed? Any off-the-record insights?