Godrej Crown GN: Possession timelines reliable hain?

Godrej Crown Residences ka ek video dekha. Greater Noida mein Godrej Golf Links ke andar hai, 3 & 4 BHK. Kafi bada project lag raha hai, 100-acre township mein. But it's a new launch, pre-launch benefits ki baat ho rahi hai. Honestly, mujhe possession timeline ki thodi tension hai. Builders usually kitna time lete hain aise bade projects mein? Kisi ke paas Godrej ke ya Greater Noida ke similar projects ka experience hai kya? Time pe mil jaata hai ya delays common hain? Kya lagta hai?