New Gurugram S89 Luxury Floors: What's the Catch?

Came across a video about M3M and Smart World's luxury floors in New Gurugram, Sector 89. They're talking about 3000+ units under DDJAY, and the video mentioned a 'biggest drawback' for buyers. That totally caught my attention since I'm seriously looking at Gurugram property right now. Anyone here checked these out or have any real experiences, good or bad? Is it worth investing in these DDJAY floors, or should I be wary?