Sector 25 Noida: Sach batao, is it overrated?

Since last month I'm seriously considering Sector 25 in Noida. My budget is decent, but prices seem high. Are they justified, honestly? Kya kisi ko pata hai if there's any negotiation possible, or are builders firm? Also, how's the water situation? Municipal water aata hai regularly ya tanker pe depend karna padega? I had no idea about these things before searching for a property. Should I look elsewhere? Ab samajh nahi aa raha.