Greenwoods Ghaziabad: What's the real investment potential?

Visited Greenwoods in Ghaziabad last Saturday, they're quoting around ₹93.96 L to ₹1.44 Cr for a 2/3 BHK. Project toh completed hai, which is great for no construction risk, but I'm looking at it purely from an investment angle. My parents keep saying 'ready property mein appreciation slow hota hai'. Is this true for Greenwoods? Anyone here owns a flat there? What's the actual rental yield like? Matlab, kitna rent mil jaata hai easily? And for capital appreciation, do you guys think it still has good upside potential, ya price already peak pe hai? Long-term exit strategy ke liye ye project kitna liquid hai, like resale mein problem toh nahi aayegi? Honestly, confused about the ROI.