Broker's 'better deal' in Noida Extension: Myth or reality?

Visited a few projects in TechZone IV last weekend. A 3BHK for the family, kids ke school ke paas, Subhlaxmi Developers ka ek flat pasand aaya. Builder direct bol raha no negotiation, but ek broker claims he can get a better price. Is it worth involving a broker for a flat in Noida Extension? Ya direct builder se hi baat karni chahiye? Not sure if they genuinely help ya bas apni commission dekhte hain. Koi experience share karo please.