Mayfield Garden: Pre-launch vs. hidden costs, real investor experience?

Mayfield Garden — I've been tracking properties there, eyeing Max Estates' upcoming project. I'm wondering if those pre-launch offers are genuinely better for investors or just marketing fluff. From my past experience, there are always unexpected charges at possession, like increased PLC or development fees. Does anyone have recent insights on the actual all-in cost difference between pre-launch and later stages in Gurgaon? Is the early bird discount worth the uncertainty?