Indirapuram 2BHK search: My confusion over quality and upkeep

Indirapuram — kids have moved out, ab itna bada ghar nahi chahiye. Looking for a manageable 2BHK, around 70-80L. Gaurs aur ATS ke projects dekhe hain, kaafi options hain. But construction quality aur post-possession maintenance charges ka kya scene hai? Existing residents ka experience kaisa hai? Samajh nahi aa raha kaunsa builder better hai.