Godrej, M3M, DLF ki construction quality sach mein kaisi hai?

Gurugram mein Godrej, M3M, ya DLF ki construction quality ka real scene kya hai? I work in real estate, but for my own end-use flat, I need honest opinions. After-sales support mein kaun better hai, especially post-possession? Sunte hain M3M ka support theek nahi for existing projects, is it true? Ya Emaar and Sobha are better bets?